| Species | Family | Authority | Plant type | Accepted UK name |
| Alga – Freshwater | Alga (freshwater) | Freshwater algae | ||
| Alaria esculenta | Alariaceae | (L.) Greville | Alga (marine) | Dabberlocks |
| Ascophyllum mackaii | Fucaceae | Alga (marine) | Knotted Wrack (Saltmarsh Ecad) | |
| Ascophyllum nodosum | Fucaceae | (L.) Le Jolis | Alga (marine) | Knotted Wrack |
| Chondrus crispus | Gigartinaceae | Stackhouse | Alga (marine) | Irish Moss |
| Chorda filum | Chordaceae | (L.) Stackhouse | Alga (marine) | Sea Lace |
| Enteromorpha intestinalis | Ulvaceae | (L.) Nees | Alga (marine) | Gutweed |
| Enteromorpha prolifera | Ulvaceae | (O F Muller) J Agardh | Alga (marine) | Gutweed (proliferous) |
| Fucus | Fucaceae | L. | Alga (marine) | Wracks |
| Fucus serratus | Fucaceae | L. | Alga (marine) | Toothed Wrack |
| Fucus vesiculosus | Fucaceae | L. | Alga (marine) | Bladderwrack |
| Gracilaria | Gracilariaceae | Greville | Alga (marine) | Agaran Seaweed |
| Halidrys siliquosa | Cystoseiraceae | (Linnaeus) Lyngbye | Alga (marine) | Sea Oak |
| Himanthalia elongata | Himanthaliaceae | (L.) S Gray | Alga (marine) | Sea Thong |
| Laminaria | Laminariaceae | Lamouroux | Alga (marine) | Kelps |
| Laminaria digitata | Laminariaceae | (Hudson) Lamouroux | Alga (marine) | Tangle |
| Laminaria hyperborea | Laminariaceae | (Gunnerus) Foslie | Alga (marine) | Cuvie / Tangle |
| Laminaria saccharina | Laminariaceae | (L.) Lamouroux | Alga (marine) | Sea Belt |
| Laurencia obtusa | Rhodomelaceae | (Hudson) Lamouroux | Alga (marine) | Pepper Dulse |
| Lithothamnion glaciale | Corallinaceae | Kjellman | Alga (marine) | Maerl |
| Monostroma grevillei | Monostromataceae | (Thuret) Wittrock | Alga (marine) | Greville’s seaweed |
| Palmaria palmata | Palmariaceae | (L.) Kuntze | Alga (marine) | Dulse |
| Pelvetia canaliculata | Fucaceae | Decaisne et Thuret | Alga (marine) | Channelled Wrack |
| Phymatolithon calcareum | Corallinaceae | (Pallas) Adey et McKibbin | Alga (marine) | Maerl |
| Porphyra umbilicalis | Bangiaceae | (L.) Kutzing | Alga (marine) | Laver |
| Saccorhiza polyschides | Laminariaceae | (Lightf.) Batt. | Alga (marine) | Furbelows |
| Sargassum | Sargassaceae | Alga (marine) | Sargassum species | |
| Seaweeds – general | Alga (marine) | Seaweeds | ||
| Ulva lactuca | Ulvaceae | L. | Alga (marine) | Sea Lettuce |
| Gloeocapsa magma | Alga (Terrestrial) | Mountain Dulse | ||
| Achillea millefolium | Asteraceae | L. | Angiosperm | Yarrow |
| Achillea ptarmica | Asteraceae | L. | Angiosperm | Sneezewort |
| Adoxa moschatellina | Adoxaceae | L. | Angiosperm | Moschatel |
| Aegopodium podagraria | Apiaceae | L. | Angiosperm | Ground Elder |
| Aethusa cynapium | Apiaceae | L. | Angiosperm | Fool’s Parsley |
| Agrimonia eupatoria | Rosaceae | L. | Angiosperm | Agrimony |
| Agrimonia procera | Rosaceae | Wallr. | Angiosperm | Fragrant Agrimony |
| Agrostemma githago | Caryophyllaceae | L. | Angiosperm | Corncockle |
| Agrostis canina | Poaceae | L. | Angiosperm | Velvet Bent |
| Agrostis capillaris | Poaceae | L. | Angiosperm | Common Bent |
| Agrostis gigantea | Poaceae | Roth | Angiosperm | Black Bent |
| Agrostis stolonifera | Poaceae | L. | Angiosperm | Creeping Bent |
| Agrostis vinealis | Poaceae | Schreber | Angiosperm | Brown Bent |
| Aira caryophyllea | Poaceae | L. | Angiosperm | Silver Hair-grass |
| Aira praecox | Poaceae | L. | Angiosperm | Early Hair-grass |
| Ajuga pyramidalis | Lamiaceae | L. | Angiosperm | Pyramidal Bugle |
| Ajuga reptans | Lamiaceae | L. | Angiosperm | Bugle |
| Alchemilla alpina | Rosaceae | L. | Angiosperm | Alpine Lady’s-mantle |
| Alchemilla filicaulis | Rosaceae | Buser. | Angiosperm | Hairy Lady’s-mantle |
| Alchemilla glabra | Rosaceae | Neyg. | Angiosperm | Smooth Lady’s-mantle |
| Alchemilla glaucescens | Rosaceae | Wallr. | Angiosperm | Glaucous Lady’s-mantle |
| Alchemilla glomerulans | Rosaceae | Buser | Angiosperm | Lady’s-mantle (sp. glomerulans) |
| Alchemilla vulgaris agg. | Rosaceae | L. | Angiosperm | Ladies’ Mantles |
| Alchemilla wichurae | Rosaceae | (Buser) Stefansson | Angiosperm | Lady’s-mantle (sp. wichurae) |
| Alchemilla xanthochlora | Rosaceae | Rothm. | Angiosperm | Intermediate Lady’s-mantle |
| Alisma lanceolatum | Alismataceae | With. | Angiosperm | Narrow-leaved Water-plantain |
| Alisma plantago-aquatica | Alismataceae | L. | Angiosperm | Water-plantain |
| Alliaria petiolata | Brassicaceae | (M. Bieb.) Cavara & Grande | Angiosperm | Garlic Mustard |
| Allium oleraceum | Liliaceae | L. | Angiosperm | Field Garlic |
| Allium schoenoprasum | Liliaceae | L. | Angiosperm | Chives |
| Allium scorodoprasum | Liliaceae | L. | Angiosperm | Sand Leek |
| Allium ursinum | Liliaceae | L. | Angiosperm | Ramsons |
| Allium vineale | Liliaceae | L. | Angiosperm | Wild Onion |
| Alnus glutinosa | Betulaceae | (L.) Gaertner | Angiosperm | Alder |
| Alopecurus borealis | Poaceae | Trin. | Angiosperm | Alpine Foxtail |
| Alopecurus geniculatus | Poaceae | L. | Angiosperm | Marsh Foxtail |
| Alopecurus myosuroides | Poaceae | L. | Angiosperm | Black-grass |
| Alopecurus pratensis | Poaceae | L. | Angiosperm | Meadow Foxtail |
| Ammophila arenaria | Poaceae | (L.) Link | Angiosperm | Marram |
| Anacamptis pyramidalis | Orchidaceae | (L.) Rich. | Angiosperm | Pyramidal Orchid |
| Anagallis arvensis | Primulaceae | L. | Angiosperm | Scarlet Pimpernel |
| Anagallis minima | Primulaceae | (L.) E. H. Krause | Angiosperm | Chaffweed |
| Anagallis tenella | Primulaceae | (L.) L. | Angiosperm | Bog Pimpernel |
| Anchusa arvensis | Boraginaceae | (L.) M. Bieb. | Angiosperm | Bugloss |
| Andromeda polifolia | Ericaceae | L. | Angiosperm | Bog-rosemary |
| Anemone nemorosa | Ranunculaceae | L. | Angiosperm | Wood Anemone |
| Angelica sylvestris | Apiaceae | L. | Angiosperm | Wild Angelica |
| Anisantha sterilis | Poaceae | (L.) Nevski | Angiosperm | Barren Brome |
| Antennaria dioica | Asteraceae | (L.) Gaertner | Angiosperm | Mountain Everlasting |
| Anthoxanthum odoratum | Poaceae | L. | Angiosperm | Sweet Vernal-grass |
| Anthriscus caucalis | Apiaceae | M. Bieb | Angiosperm | Bur Chervil |
| Anthriscus sylvestris | Apiaceae | (L.) Hoffm. | Angiosperm | Cow Parsley |
| Anthyllis vulneraria | Fabaceae | L. | Angiosperm | Kidney Vetch |
| Aphanes arvensis | Rosaceae | L. | Angiosperm | Parsley-piert |
| Aphanes inexspectata | Rosaceae | Lippert | Angiosperm | Slender Parsley-piert |
| Apium graveolens | Apiaceae | L. | Angiosperm | Wild Celery |
| Apium inundatum | Apiaceae | (L.) H. G. Reichb. | Angiosperm | Lesser Marshwort |
| Apium nodiflorum | Apiaceae | (L.) Lag. | Angiosperm | Fool’s-water-cress |
| Aquilegia vulgaris | Ranunculaceae | L. | Angiosperm | Columbine |
| Arabidopsis thaliana | Brassicaceae | (L.) Heynh. | Angiosperm | Thale Cress |
| Arabis alpina | Brassicaceae | L. | Angiosperm | Alpine Rock-cress |
| Arabis glabra | Brassicaceae | (L.) Bernh. | Angiosperm | Tower Mustard |
| Arabis hirsuta | Brassicaceae | (L.) Scop. | Angiosperm | Hairy Rock-cress |
| Arabis petraea | Brassicaceae | (L.) Lam. | Angiosperm | Northern Rock-cress |
| Arctium minus | Asteraceae | (Hill) Bernh. | Angiosperm | Lesser Burdock |
| Arctostaphylos alpinus | Ericaceae | (L.) Sprengel | Angiosperm | Alpine Bearberry |
| Arctostaphylos uva-ursi | Ericaceae | (L.) Sprengel | Angiosperm | Bearberry |
| Arenaria norvegica | Caryophyllaceae | Gunnerus | Angiosperm | Arctic Sandwort |
| Arenaria serpyllifolia | Caryophyllaceae | L. | Angiosperm | Thyme-leaved Sandwort |
| Armeria maritima | Plumbaginaceae | (Miller) Willd. | Angiosperm | Thrift |
| Arnoseris minima | Asteraceae | (L.) Schweigger & Koerte | Angiosperm | Lamb’s Succory |
| Arrhenatherum elatius | Poaceae | (L.) P. Beauv. Ex J. S. & C. Presl | Angiosperm | False Oat-grass |
| Artemisia absinthium | Asteraceae | L. | Angiosperm | Wormwood |
| Artemisia norvegica | Asteraceae | Fries | Angiosperm | Norwegian Mugwort |
| Artemisia vulgaris | Asteraceae | L. | Angiosperm | Mugwort |
| Arum maculatum | Araceae | L. | Angiosperm | Lords-and-Ladies |
| Aster tripolium | Asteraceae | L. | Angiosperm | Sea Aster |
| Astragalus alpinus | Fabaceae | L. | Angiosperm | Alpine Milk-vetch |
| Astragalus danicus | Fabaceae | Retz. | Angiosperm | Purple Milk-vetch |
| Astragalus glycyphyllos | Fabaceae | L. | Angiosperm | Wild Liquorice |
| Atriplex | Chenopodiaceae | L. | Angiosperm | Oraches |
| Atriplex glabriuscula | Chenopodiaceae | Edmondston | Angiosperm | Babington’s Orache |
| Atriplex laciniata | Chenopodiaceae | L. | Angiosperm | Frosted Orache |
| Atriplex littoralis | Chenopodiaceae | L. | Angiosperm | Grass-leaved Orache |
| Atriplex longipes | Chenopodiaceae | Drejer | Angiosperm | Long-stalked Orache |
| Atriplex patula | Chenopodiaceae | L. | Angiosperm | Common Orache |
| Atriplex portulacoides | Chenopodiaceae | L. | Angiosperm | Sea-purslane |
| Atriplex praecox | Chenopodiaceae | Huelph. | Angiosperm | Early Orache |
| Atriplex prostrata | Chenopodiaceae | Boucher ex DC. | Angiosperm | Spear-leaved Orache |
| Baldellia ranunculoides | Alismataceae | (L.) Parl. | Angiosperm | Lesser Water-plantain |
| Ballota nigra | Lamiaceae | L. | Angiosperm | Black Horehound |
| Barbarea vulgaris | Brassicaceae | R. Br. | Angiosperm | Winter-cress |
| Bartsia alpina | Scrophulariaceae | L. | Angiosperm | Alpine Bartsia |
| Bellis perennis | Asteraceae | L. | Angiosperm | Daisy |
| Berberis vulgaris | Berberidaceae | L. | Angiosperm | Barberry |
| Berula erecta | Apiaceae | (Hudson) Cov. | Angiosperm | Lesser Water-parsnip |
| Beta vulgaris | Chenopodiaceae | L. | Angiosperm | Beet |
| Betula | Betulaceae | L. | Angiosperm | Birches |
| Betula nana | Betulaceae | L. | Angiosperm | Dwarf Birch |
| Betula pendula | Betulaceae | Roth | Angiosperm | Silver Birch |
| Betula pubescens | Betulaceae | Ehrh. | Angiosperm | Downy Birch |
| Betula x aurata | Betulaceae | Borkh. | Angiosperm | Hybrid Birch |
| Bidens cernua | Asteraceae | L. | Angiosperm | Nodding Bur-marigold |
| Bidens tripartita | Asteraceae | L. | Angiosperm | Trifid Bur-marigold |
| Blysmus compressus | Cyperaceae | (L.) Panzer ex Link | Angiosperm | Flat-sedge |
| Blysmus rufus | Cyperaceae | (Hudson) Link | Angiosperm | Saltmarsh Flat-sedge |
| Bolboschoenus maritimus | Cyperaceae | (L.) Palla | Angiosperm | Sea Club-rush |
| Borago officinalis | Boraginaceae | L. | Angiosperm | Borage |
| Brachypodium pinnatum | Poaceae | (L.) P. Beauv. | Angiosperm | Tor-grass |
| Brachypodium sylvaticum | Poaceae | (Hudson) P. Beauv. | Angiosperm | False Brome |
| Brassica nigra | Brassicaceae | (L.) Koch | Angiosperm | Black Mustard |
| Briza media | Poaceae | L. | Angiosperm | Quaking-grass |
| Bromopsis benekenii | Poaceae | (Lange) Holub | Angiosperm | Lesser Hairy-brome |
| Bromopsis ramosa | Poaceae | (Hudson) Holub | Angiosperm | Hairy-brome |
| Bromus arvensis | Poaceae | L. | Angiosperm | Field Brome |
| Bromus commutatus | Poaceae | Schrader | Angiosperm | Meadow Brome |
| Bromus hordeaceus | Poaceae | L. | Angiosperm | Soft Brome |
| Bromus racemosus | Poaceae | L. | Angiosperm | Smooth Brome |
| Cakile maritima | Brassicaceae | Scop. | Angiosperm | Sea Rocket |
| Calamagrostis canescens | Poaceae | (Wigg.) Roth | Angiosperm | Purple Small-reed |
| Calamagrostis epigejos | Poaceae | (L.) Roth | Angiosperm | Wood Small-reed |
| Calamagrostis purpurea | Poaceae | (Trin.) Trin. | Angiosperm | Scandinavian Small-reed |
| Calamagrostis scotica | Poaceae | (Druce) Druce | Angiosperm | Scottish Small-reed |
| Calamagrostis stricta | Poaceae | (Timm) Koeler | Angiosperm | Narrow Small-reed |
| Callitriche brutia | Callitrichaceae | Petagna | Angiosperm | Pedunculate Water-starwort |
| Callitriche hamulata | Callitrichaceae | Kuetz. Ex Koch | Angiosperm | Intermediate Water-starwort |
| Callitriche hermaphroditica | Callitrichaceae | L. | Angiosperm | Autumnal Water-starwort |
| Callitriche obtusangula | Callitrichaceae | Le Gall | Angiosperm | Blunt-fruited Water-starwort |
| Callitriche platycarpa | Callitrichaceae | Kuetz. | Angiosperm | Various-leaved Water-starwort |
| Callitriche stagnalis | Callitrichaceae | Scop. | Angiosperm | Common Water-starwort |
| Calluna vulgaris | Ericaceae | (L.) Hull | Angiosperm | Heather |
| Caltha palustris | Ranunculaceae | L. | Angiosperm | Marsh Marigold |
| Calystegia sepium | Convolvulaceae | (L.) R. Br. | Angiosperm | Hedge Bindweed |
| Calystegia soldanella | Convolvulaceae | (L.) R. Br. | Angiosperm | Sea Bindweed |
| Campanula glomerata | Campanulaceae | L. | Angiosperm | Clustered Bellflower |
| Campanula latifolia | Campanulaceae | L. | Angiosperm | Giant Bellflower |
| Campanula rotundifolia | Campanulaceae | L. | Angiosperm | Harebell |
| Capsella bursa-pastoris | Brassicaceae | (L.) Medikus | Angiosperm | Shepherd’s Purse |
| Cardamine amara | Brassicaceae | L. | Angiosperm | Large Bitter-cress |
| Cardamine flexuosa | Brassicaceae | With. | Angiosperm | Wavy Bitter-cress |
| Cardamine hirsuta | Brassicaceae | L. | Angiosperm | Hairy Bitter-cress |
| Cardamine impatiens | Brassicaceae | L. | Angiosperm | Narrow-leaved Bitter-cress |
| Cardamine pratensis | Brassicaceae | L. | Angiosperm | Cuckooflower |
| Carduus crispus | Asteraceae | L. | Angiosperm | Welted Thistle |
| Carduus nutans | Asteraceae | L. | Angiosperm | Musk Thistle |
| Carduus tenuiflorus | Asteraceae | Curtis | Angiosperm | Slender Thistle |
| Carex acuta | Cyperaceae | L. | Angiosperm | Slender Tufted-sedge |
| Carex acutiformis | Cyperaceae | Ehrh. | Angiosperm | Lesser Pond-sedge |
| Carex appropinquata | Cyperaceae | Schum. | Angiosperm | Fibrous Tussock-sedge |
| Carex aquatilis | Cyperaceae | Wahlenb. | Angiosperm | Water Sedge |
| Carex arenaria | Cyperaceae | L. | Angiosperm | Sand Sedge |
| Carex atrata | Cyperaceae | L. | Angiosperm | Black Alpine-sedge |
| Carex atrofusca | Cyperaceae | Schkuhr | Angiosperm | Scorched Alpine-sedge |
| Carex bigelowii | Cyperaceae | Torrey ex Schwein. | Angiosperm | Stiff Sedge |
| Carex binervis | Cyperaceae | Smith | Angiosperm | Green-ribbed Sedge |
| Carex buxbaumii | Cyperaceae | Wahlenb. | Angiosperm | Club Sedge |
| Carex capillaris | Cyperaceae | L. | Angiosperm | Hair Sedge |
| Carex caryophyllea | Cyperaceae | Latour. | Angiosperm | Spring-sedge |
| Carex chordorrhiza | Cyperaceae | L. f. | Angiosperm | String Sedge |
| Carex curta | Cyperaceae | Gooden. | Angiosperm | White Sedge |
| Carex diandra | Cyperaceae | Schrank | Angiosperm | Lesser Tussock-sedge |
| Carex dioica | Cyperaceae | L. | Angiosperm | Dioecious Sedge |
| Carex distans | Cyperaceae | L. | Angiosperm | Distant Sedge |
| Carex disticha | Cyperaceae | Hudson | Angiosperm | Brown Sedge |
| Carex divisa | Cyperaceae | Hudson | Angiosperm | Divided Sedge |
| Carex divulsa | Cyperaceae | Stokes | Angiosperm | Grey Sedge |
| Carex echinata | Cyperaceae | Murray | Angiosperm | Star Sedge |
| Carex elata | Cyperaceae | All. | Angiosperm | Tufted-sedge |
| Carex elongata | Cyperaceae | L. | Angiosperm | Elongated Sedge |
| Carex extensa | Cyperaceae | Gooden. | Angiosperm | Long-bracted Sedge |
| Carex flacca | Cyperaceae | Schreber | Angiosperm | Glaucous Sedge |
| Carex hirta | Cyperaceae | L. | Angiosperm | Hairy Sedge |
| Carex hostiana | Cyperaceae | DC. | Angiosperm | Tawny Sedge |
| Carex lachenalii | Cyperaceae | Schk. | Angiosperm | Hare’s-foot Sedge |
| Carex laevigata | Cyperaceae | Smith | Angiosperm | Smooth-stalked Sedge |
| Carex lasiocarpa | Cyperaceae | Ehrh. | Angiosperm | Slender Sedge |
| Carex limosa | Cyperaceae | L. | Angiosperm | Bog-sedge |
| Carex magellanica | Cyperaceae | Lam | Angiosperm | Tall Bog-sedge |
| Carex maritima | Cyperaceae | Gunnerus | Angiosperm | Curved Sedge |
| Carex microglochin | Cyperaceae | Wahlenb. | Angiosperm | Bristle Sedge |
| Carex muricata | Cyperaceae | L. | Angiosperm | Prickly Sedge |
| Carex nigra | Cyperaceae | (L.) Reichard | Angiosperm | Common Sedge |
| Carex norvegica | Cyperaceae | Retz. | Angiosperm | Close-headed Alpine-sedge |
| Carex otrubae | Cyperaceae | Podp. | Angiosperm | False Fox-sedge |
| Carex ovalis | Cyperaceae | Gooden. | Angiosperm | Oval Sedge |
| Carex pallescens | Cyperaceae | L. | Angiosperm | Pale Sedge |
| Carex panicea | Cyperaceae | L. | Angiosperm | Carnation Sedge |
| Carex paniculata | Cyperaceae | L. | Angiosperm | Greater Tussock-sedge |
| Carex pauciflora | Cyperaceae | Light. | Angiosperm | Few-flowered Sedge |
| Carex pendula | Cyperaceae | Hudson | Angiosperm | Pendulous Sedge |
| Carex pilulifera | Cyperaceae | L. | Angiosperm | Pill Sedge |
| Carex pulicaris | Cyperaceae | L. | Angiosperm | Flea Sedge |
| Carex punctata | Cyperaceae | Gaudin | Angiosperm | Dotted Sedge |
| Carex rariflora | Cyperaceae | (Wahlenb.) Smith | Angiosperm | Mountain Bog-sedge |
| Carex recta | Cyperaceae | Boott | Angiosperm | Estuarine Sedge |
| Carex remota | Cyperaceae | L. | Angiosperm | Remote Sedge |
| Carex riparia | Cyperaceae | Curtis | Angiosperm | Greater Pond-sedge |
| Carex rostrata | Cyperaceae | Stokes | Angiosperm | Bottle Sedge |
| Carex rupestris | Cyperaceae | All. | Angiosperm | Rock Sedge |
| Carex saxatilis | Cyperaceae | L. | Angiosperm | Russet Sedge |
| Carex spicata | Cyperaceae | Hudson | Angiosperm | Spiked Sedge |
| Carex sylvatica | Cyperaceae | Hudson | Angiosperm | Wood-sedge |
| Carex vaginata | Cyperaceae | Tausch | Angiosperm | Sheathed Sedge |
| Carex vesicaria | Cyperaceae | L. | Angiosperm | Bladder-sedge |
| Carex viridula | Cyperaceae | Michaux | Angiosperm | Yellow Sedge |
| Carlina vulgaris | Asteraceae | L. | Angiosperm | Carline Thistle |
| Carum verticillatum | Apiaceae | (L.) Koch | Angiosperm | Whorled Caraway |
| Catabrosa aquatica | Poaceae | (L.) P. Beauv. | Angiosperm | Whorl-grass |
| Catapodium marinum | Poaceae | (L.) C. E. Hubb. | Angiosperm | Sea Fern-grass |
| Catapodium rigidum | Poaceae | (L.) C. E. Hubb | Angiosperm | Fern-grass |
| Centaurea cyanus | Asteraceae | L. | Angiosperm | Cornflower |
| Centaurea nigra | Asteraceae | L. | Angiosperm | Common Knapweed |
| Centaurea scabiosa | Asteraceae | L. | Angiosperm | Greater Knapweed |
| Centaurium erythraea | Gentianaceae | Rafn | Angiosperm | Common Centaury |
| Centaurium littorale | Gentianaceae | (Turner ex Sm.) Gilmour | Angiosperm | Seaside Centaury |
| Centaurium pulchellum | Gentianaceae | (Sw.) Druce | Angiosperm | Lesser Centaury |
| Cephalanthera longifolia | Orchidaceae | (L.) Fritsch | Angiosperm | Narrow-leaved Helleborine |
| Cerastium alpinum | Caryophyllaceae | L. | Angiosperm | Alpine Mouse-ear |
| Cerastium arcticum | Caryophyllaceae | Lange | Angiosperm | Arctic Mouse-ear |
| Cerastium arvense | Caryophyllaceae | L. | Angiosperm | Field Mouse-ear |
| Cerastium cerastoides | Caryophyllaceae | (L.) Britton | Angiosperm | Starwort Mouse-ear |
| Cerastium diffusum | Caryophyllaceae | Pers. | Angiosperm | Sea Mouse-ear |
| Cerastium fontanum | Caryophyllaceae | Baumg. | Angiosperm | Common Mouse-ear |
| Cerastium glomeratum | Caryophyllaceae | Thuill. | Angiosperm | Sticky Mouse-ear |
| Cerastium nigrescens | Caryophyllaceae | (H. Watson) Edmonston ex H. Watson | Angiosperm | Shetland Mouse-ear |
| Cerastium semidecandrum | Caryophyllaceae | L. | Angiosperm | Little Mouse-ear |
| Ceratocapnos claviculata | Fumariaceae | (L.) Liden | Angiosperm | Climbing Corydalis |
| Ceratophyllum demersum | Ceratophyllaceae | L. | Angiosperm | Rigid Hornwort |
| Chaenorhinum minus | Scrophulariaceae | (L.) Lange | Angiosperm | Small Toadflax |
| Chaerophyllum temulum | Apiaceae | L. | Angiosperm | Rough Chervil |
| Chamerion angustifolium | Onagraceae | (L.) Holub | Angiosperm | Rosebay Willowherb |
| Chelidonium majus | Papaveraceae | L. | Angiosperm | Greater Celandine |
| Chenopodium album | Chenopodiaceae | L. | Angiosperm | Fat-hen |
| Chenopodium bonus-henricus | Chenopodiaceae | L. | Angiosperm | Good-King-Henry |
| Chenopodium vulvaria | Chenopodiaceae | L. | Angiosperm | Stinking goosefoot |
| Chrysanthemum segetum | Asteraceae | L. | Angiosperm | Corn Marigold |
| Chrysosplenium alternifolium | Saxifragaceae | L. | Angiosperm | Alternate-leaved Golden-saxifrage |
| Chrysosplenium oppositifolium | Saxifragaceae | L. | Angiosperm | Opposite-leaved Golden-saxifrage |
| Cicerbita alpina | Asteraceae | (L.) Wallr. | Angiosperm | Alpine Blue-sow-thistle |
| Cicuta virosa | Apiaceae | L. | Angiosperm | Cowbane |
| Circaea alpina | Onagraceae | L. | Angiosperm | Alpine Enchanter’s-nightshade |
| Circaea lutetiana | Onagraceae | L. | Angiosperm | Enchanter’s-nightshade |
| Cirsium | Asteraceae | Miller | Angiosperm | Thistles |
| Cirsium arvense | Asteraceae | (L.) Scop. | Angiosperm | Creeping Thistle |
| Cirsium dissectum | Asteraceae | (L.) Hill | Angiosperm | Meadow Thistle |
| Cirsium heterophyllum | Asteraceae | (L.) Hill | Angiosperm | Melancholy Thistle |
| Cirsium palustre | Asteraceae | (L.) Scop. | Angiosperm | Marsh Thistle |
| Cirsium vulgare | Asteraceae | (Savi) Ten. | Angiosperm | Spear Thistle |
| Cladium mariscus | Cyperaceae | (L.) Pohl | Angiosperm | Great Fen-sedge |
| Clinopodium acinos | Lamiaceae | (L.) Kuntze | Angiosperm | Basil Thyme |
| Clinopodium vulgare | Lamiaceae | L. | Angiosperm | Wild Basil |
| Cochlearia | Brassicaceae | L. | Angiosperm | Scurvy grasses |
| Cochlearia anglica | Brassicaceae | L. | Angiosperm | English Scurvygrass |
| Cochlearia danica | Brassicaceae | L. | Angiosperm | Danish Scurvygrass |
| Cochlearia micacea | Brassicaceae | E. Marshall | Angiosperm | Mountain Scurvygrass |
| Cochlearia officinalis | Brassicaceae | L. | Angiosperm | Common Scurvygrass |
| Cochlearia pyrenaica | Brassicaceae | DC. | Angiosperm | Pyrenean Scurvygrass |
| Coeloglossum viride | Orchidaceae | (L.) Hartman | Angiosperm | Frog Orchid |
| Coincya monensis | Brassicaceae | L. | Angiosperm | Isle of Man Cabbage |
| Conium maculatum | Apiaceae | L. | Angiosperm | Hemlock |
| Conopodium majus | Apiaceae | (Gouan) Loret | Angiosperm | Pignut |
| Convallaria majalis | Liliaceae | L. | Angiosperm | Lily-of-the-valley |
| Convolvulus arvensis | Convolvulaceae | L. | Angiosperm | Field Bindweed |
| Corallorrhiza trifida | Orchidaceae | Chatel | Angiosperm | Coralroot Orchid |
| Cornus suecica | Cornaceae | L. | Angiosperm | Dwarf Cornel |
| Coronopus squamatus | Brassicaceae | (Forsskaol) Asch. | Angiosperm | Swine-cress |
| Corylus avellana | Betulaceae | L. | Angiosperm | Hazel |
| Crambe maritima | Brassicaceae | L. | Angiosperm | Sea-kale |
| Crassula aquatica | Crassulaceae | (L.) Schoenl. | Angiosperm | Pigmyweed |
| Crataegus monogyna | Rosaceae | Jacq. | Angiosperm | Hawthorn |
| Crepis biennis | Asteraceae | L. | Angiosperm | Rough Hawk’s-beard |
| Crepis capillaris | Asteraceae | (L.) Wallr. | Angiosperm | Smooth Hawk’s-beard |
| Crepis mollis | Asteraceae | (Jacq.) Asch | Angiosperm | Northern Hawk’s-beard |
| Crepis paludosa | Asteraceae | (L.) Moench | Angiosperm | Marsh Hawk’s-beard |
| Crithmum maritimum | Apiaceae | L. | Angiosperm | Rock Samphire |
| Cruciata laevipes | Rubiaceae | Opiz | Angiosperm | Crosswort |
| Cuscuta epithymum | Cuscutaceae | (L.) L. | Angiosperm | Dodder |
| Cynoglossum germanicum | Boraginaceae | Jacq. | Angiosperm | Green Hound’s-tongue |
| Cynoglossum officinale | Boraginaceae | L. | Angiosperm | Hound’s-tongue |
| Cynosurus cristatus | Poaceae | L. | Angiosperm | Crested Dog’s-tail |
| Cyperaceae | Cyperaceae | Angiosperm | Sedges | |
| Cytisus scoparius | Fabaceae | (L.) Link | Angiosperm | Broom |
| Dactylis glomerata | Poaceae | L. | Angiosperm | Cock’s-foot |
| Dactylorhiza fuchsii | Orchidaceae | (Druce) Soo | Angiosperm | Common Spotted-orchid |
| Dactylorhiza incarnata | Orchidaceae | (L.) Soo | Angiosperm | Early Marsh-orchid |
| Dactylorhiza lapponica | Orchidaceae | (Hartman) Soo | Angiosperm | Lapland Marsh-orchid |
| Dactylorhiza maculata | Orchidaceae | (L.) Soo | Angiosperm | Heath Spotted Orchid |
| Dactylorhiza majalis | Orchidaceae | (Reichb.) P. Hunt & Summerh. | Angiosperm | Western Marsh-orchid |
| Dactylorhiza purpurella | Orchidaceae | (Stephenson & T. A. Stephenson) Soo | Angiosperm | Northern Marsh-orchid |
| Dactylorhiza traunsteineri | Orchidaceae | (Sauter ex Reichb.) Soo | Angiosperm | Narrow-leaved Marsh-orchid |
| Danthonia decumbens | Poaceae | (L.) DC. | Angiosperm | Heath-grass |
| Daucus carota | Apiaceae | L. | Angiosperm | Wild Carrot |
| Deschampsia cespitosa | Poaceae | (L.) P. Beauv. | Angiosperm | Tufted Hair-grass |
| Deschampsia flexuosa | Poaceae | (L.) Trin. | Angiosperm | Wavy Hair-grass |
| Deschampsia setacea | Poaceae | (Hudson) Hackel | Angiosperm | Bog Hair-grass |
| Dianthus deltoides | Caryophyllaceae | L. | Angiosperm | Maiden Pink |
| Diapensia lapponica | Diapensiaceae | L. | Angiosperm | Diapensia |
| Digitalis purpurea | Scrophulariaceae | L. | Angiosperm | Foxglove |
| Dipsacus fullonum | Dipsacaceae | L. | Angiosperm | Wild Teasel |
| Draba incana | Brassicaceae | L. | Angiosperm | Hoary Whitlowgrass |
| Draba muralis | Brassicaceae | L. | Angiosperm | Wall Whitlowgrass |
| Draba norvegica | Brassicaceae | Gunnerus | Angiosperm | Rock Whitlowgrass |
| Drosera intermedia | Droseraceae | Hayne | Angiosperm | Oblong-leaved Sundew |
| Drosera longifolia | Droseraceae | L. | Angiosperm | Great Sundew |
| Drosera rotundifolia | Droseraceae | L. | Angiosperm | Round-leaved Sundew |
| Dryas octopetala | Rosaceae | L. | Angiosperm | Mountain Avens |
| Echium vulgare | Boraginaceae | L. | Angiosperm | Viper’s-bugloss |
| Elatine hexandra | Elatinaceae | (Lapierre) DC. | Angiosperm | Six-stamened Waterwort |
| Elatine hydropiper | Elatinaceae | L. | Angiosperm | Eight-stamened Waterwort |
| Eleocharis acicularis | Cyperaceae | (L.) Roemer & Schultes | Angiosperm | Needle Spike-rush |
| Eleocharis austriaca | Cyperaceae | Hayek | Angiosperm | Northern Spike-rush |
| Eleocharis multicaulis | Cyperaceae | (Smith) Desv. | Angiosperm | Many-stalked Spike-rush |
| Eleocharis palustris | Cyperaceae | (L.) Roemer & Schultes | Angiosperm | Common Spike-rush |
| Eleocharis quinqueflora | Cyperaceae | (F. Hartmann) O. Schwartz | Angiosperm | Few-flowered Spike-rush |
| Eleocharis uniglumis | Cyperaceae | (Link) Schultes | Angiosperm | Slender Spike-rush |
| Eleogiton fluitans | Cyperaceae | (L.) Link | Angiosperm | Floating Club-rush |
| Elymus caninus | Poaceae | (L.) L. | Angiosperm | Bearded Couch |
| Elytrigia atherica | Poaceae | (Link) Kerguelen ex Carreras Mart. | Angiosperm | Sea Couch |
| Elytrigia juncea | Poaceae | (L.) Neviski | Angiosperm | Sand Couch |
| Elytrigia repens | Poaceae | (L.) Desv. Ex Nevinski | Angiosperm | Common Couch |
| Empetrum nigrum | Empetraceae | L. | Angiosperm | Crowberry |
| Epilobium alsinifolium | Onagraceae | Villars | Angiosperm | Chickweed Willowherb |
| Epilobium anagallidifolium | Onagraceae | Lam. | Angiosperm | Alpine Willowherb |
| Epilobium hirsutum | Onagraceae | L. | Angiosperm | Great Willowherb |
| Epilobium montanum | Onagraceae | L. | Angiosperm | Broad-leaved Willowherb |
| Epilobium obscurum | Onagraceae | Schreber | Angiosperm | Short-fruited Willowherb |
| Epilobium palustre | Onagraceae | L. | Angiosperm | Marsh Willowherb |
| Epilobium parviflorum | Onagraceae | Schreber | Angiosperm | Hoary Willowherb |
| Epilobium roseum | Onagraceae | Schreber | Angiosperm | Pale Willowherb |
| Epipactis atrorubens | Orchidaceae | (Hoffm.) Besser | Angiosperm | Dark-red Helleborine |
| Epipactis helleborine | Orchidaceae | (L.) Crantz | Angiosperm | Broad-leaved Helleborine |
| Epipactis leptochila | Orchidaceae | (Godfery) Godfery | Angiosperm | Narrow-lipped Helleborine |
| Epipactis palustris | Orchidaceae | (L.) Crantz | Angiosperm | Marsh Helleborine |
| Epipactis phyllanthes | Orchidaceae | G. E. Smith | Angiosperm | Green-flowered Helleborine |
| Epipactis youngiana | Orchidaceae | A. Richards & A. Porter | Angiosperm | Young’s Helleborine |
| Erica cinerea | Ericaceae | L. | Angiosperm | Bell Heather |
| Erica tetralix | Ericaceae | L. | Angiosperm | Cross-leaved Heath |
| Erigeron borealis | Asteraceae | (Vierh.) Simmons | Angiosperm | Alpine Fleabane |
| Eriocaulon aquaticum | Eriocaulaceae | (Hill) Druce | Angiosperm | Pipewort |
| Eriophorum angustifolium | Cyperaceae | Honck. | Angiosperm | Common Cottongrass |
| Eriophorum latifolium | Cyperaceae | Hoppe | Angiosperm | Broad-leaved Cottongrass |
| Eriophorum vaginatum | Cyperaceae | L. | Angiosperm | Hare’s-tail Cottongrass |
| Erodium cicutarium | Geraniaceae | (L.) L’Her. | Angiosperm | Common Stork’s-bill |
| Erodium lebelii | Geraniaceae | Jordan | Angiosperm | Sticky Stork’s-bill |
| Erodium maritimum | Geraniaceae | (L.) L’Her | Angiosperm | Sea Stork’s-bill |
| Erophila glabrescens | Brassicaceae | Jordan | Angiosperm | Glabrous Whitlowgrass |
| Erophila majuscula | Brassicaceae | Jordan | Angiosperm | Hairy Whitlowgrass |
| Erophila verna | Brassicaceae | (L.) DC. | Angiosperm | Common Whitlowgrass |
| Eryngium maritimum | Apiaceae | L. | Angiosperm | Sea-holly |
| Euonymus europaeus | Celastraceae | L. | Angiosperm | Spindle |
| Eupatorium cannabinum | Asteraceae | L. | Angiosperm | Hemp-agrimony |
| Euphorbia exigua | Euphorbiaceae | L. | Angiosperm | Dwarf Spurge |
| Euphorbia helioscopia | Euphorbiaceae | L. | Angiosperm | Sun Spurge |
| Euphorbia paralias | Euphorbiaceae | L. | Angiosperm | Sea Spurge |
| Euphorbia peplus | Euphorbiaceae | L. | Angiosperm | Petty Spurge |
| Euphorbia portlandica | Euphorbiaceae | L. | Angiosperm | Portland Spurge |
| Euphrasia | Scrophulariaceae | L. | Angiosperm | Eyebrights |
| Euphrasia anglica | Scrophulariaceae | Pugsley | Angiosperm | Eyebright (English) |
| Euphrasia arctica | Scrophulariaceae | Lange ex Rostrup. | Angiosperm | Eyebright (sp. arctica) |
| Euphrasia campbelliae | Scrophulariaceae | Pugsley | Angiosperm | Eyebright (campbell’s) |
| Euphrasia confusa | Scrophulariaceae | Pugsley | Angiosperm | Eyebright (sp. confusa) |
| Euphrasia foulaensis | Scrophulariaceae | F. Towns | Angiosperm | Eyebright (Foula) |
| Euphrasia frigida | Scrophulariaceae | Pugsley | Angiosperm | Eyebright (sp. frigida) |
| Euphrasia heslop-harrisonii | Scrophulariaceae | Pugsley | Angiosperm | Eyebright (Heslop Harrison’s) |
| Euphrasia marshallii | Scrophulariaceae | Pugsley | Angiosperm | Eyebright (Marshall’s) |
| Euphrasia micrantha | Scrophulariaceae | Reichb. | Angiosperm | Eyebright (sp. micrantha) |
| Euphrasia nemorosa | Scrophulariaceae | (Pers.) Wallr. | Angiosperm | Eyebright (sp. nemorosa) |
| Euphrasia ostenfeldii | Scrophulariaceae | (Pugsley) Yeo | Angiosperm | Eyebright (sp. ostenfeldii) |
| Euphrasia rostkoviana | Scrophulariaceae | Hayne | Angiosperm | Eyebright (sp. rostkoviana) |
| Euphrasia rotundifolia | Scrophulariaceae | Pugsley | Angiosperm | Eyebright (Round-leaved) |
| Euphrasia scottica | Scrophulariaceae | Wettst. | Angiosperm | Eyebright (Scots) |
| Euphrasia tetraquetra | Scrophulariaceae | (Breb.) Arrond. | Angiosperm | Eyebright (sp. tetraquetra) |
| Fallopia convolvulus | Polygonaceae | (L.) A. Love | Angiosperm | Black-bindweed |
| Festuca altissima | Poaceae | All. | Angiosperm | Wood Fescue |
| Festuca arenaria | Poaceae | Osbeck | Angiosperm | Rush-leaved Fescue |
| Festuca arundinacea | Poaceae | Schreber | Angiosperm | Tall Fescue |
| Festuca filiformis | Poaceae | Pourret | Angiosperm | Fine-leaved Sheep’s-fescue |
| Festuca gigantea | Poaceae | (L.) Villars | Angiosperm | Giant Fescue |
| Festuca lemanii | Poaceae | Bast. | Angiosperm | Confused Fescue |
| Festuca ovina | Poaceae | L. | Angiosperm | Sheep’s-fescue |
| Festuca pratensis | Poaceae | Hudson | Angiosperm | Meadow Fescue |
| Festuca rubra | Poaceae | L. | Angiosperm | Red Fescue |
| Festuca vivipara | Poaceae | (L.) Smith. | Angiosperm | Viviparous Sheep’s-fescue |
| Filago minima | Asteraceae | (Sm.) Pers. | Angiosperm | Small Cudweed |
| Filago vulgaris | Asteraceae | Lam. | Angiosperm | Common Cudweed |
| Filipendula ulmaria | Rosaceae | (L.) Maxim. | Angiosperm | Meadowsweet |
| Filipendula vulgaris | Rosaceae | Moench | Angiosperm | Dropwort |
| Fragaria vesca | Rosaceae | L. | Angiosperm | Wild Strawberry |
| Frangula alnus | Rhamnaceae | Miller | Angiosperm | Alder Buckthorn |
| Fraxinus excelsior | Oleaceae | L. | Angiosperm | Ash |
| Fumaria bastardii | Fumariaceae | Boreau | Angiosperm | Tall Ramping-fumitory |
| Fumaria capreolata | Fumariaceae | L. | Angiosperm | White Ramping-fumitory |
| Fumaria densiflora | Fumariaceae | DC. | Angiosperm | Dense-flowered Fumitory |
| Fumaria muralis | Fumariaceae | Sonder ex Koch | Angiosperm | Common Ramping-fumitory |
| Fumaria officinalis | Fumariaceae | L. | Angiosperm | Common Fumitory |
| Fumaria parviflora | Fumariaceae | Lam. | Angiosperm | Fine-leaved Fumitory |
| Fumaria purpurea | Fumariaceae | Pugsley | Angiosperm | Purple Ramping-fumitory |
| Gagea lutea | Liliaceae | (L.) Ker Gawler | Angiosperm | Yellow Star-of-Bethlehem |
| Galanthus nivalis | Liliaceae | L. | Angiosperm | Snowdrop |
| Galeopsis angustifolia | Lamiaceae | Ehrh. Ex Hoffm. | Angiosperm | Red Hemp-nettle |
| Galeopsis bifida | Lamiaceae | Boenn. | Angiosperm | Bifid Hemp-nettle |
| Galeopsis speciosa | Lamiaceae | Miller | Angiosperm | Large-flowered Hemp-nettle |
| Galeopsis tetrahit | Lamiaceae | L. | Angiosperm | Common Hemp-nettle |
| Galium aparine | Rubiaceae | L. | Angiosperm | Cleavers |
| Galium boreale | Rubiaceae | L. | Angiosperm | Northern Bedstraw |
| Galium mollugo | Rubiaceae | L. | Angiosperm | Hedge Bedstraw |
| Galium odoratum | Rubiaceae | (L.) Scop. | Angiosperm | Woodruff |
| Galium palustre | Rubiaceae | L. | Angiosperm | Common Marsh Bedstraw |
| Galium saxatile | Rubiaceae | L. | Angiosperm | Heath Bedstraw |
| Galium sterneri | Rubiaceae | Ehrend. | Angiosperm | Limestone Bedstraw |
| Galium uliginosum | Rubiaceae | L. | Angiosperm | Fen Bedstraw |
| Galium verum | Rubiaceae | L. | Angiosperm | Lady’s Bedstraw |
| Genista anglica | Fabaceae | L. | Angiosperm | Petty Whin |
| Genista tinctoria | Fabaceae | L. | Angiosperm | Dyer’s Greenweed |
| Gentiana | Gentianaceae | L. | Angiosperm | Gentians |
| Gentiana nivalis | Gentianaceae | L. | Angiosperm | Alpine Gentian |
| Gentianella amarella | Gentianaceae | (L.) Boerner | Angiosperm | Autumn Gentian |
| Gentianella campestris | Gentianaceae | (L.) Boerner | Angiosperm | Field Gentian |
| Geranium columbinum | Geraniaceae | L. | Angiosperm | Long-stalked Crane’s-bill |
| Geranium dissectum | Geraniaceae | L. | Angiosperm | Cut-leaved Crane’s-bill |
| Geranium lucidum | Geraniaceae | L. | Angiosperm | Shining Crane’s-bill |
| Geranium molle | Geraniaceae | L. | Angiosperm | Dove’s-foot Crane’s-bill |
| Geranium pratense | Geraniaceae | L. | Angiosperm | Meadow Crane’s-bill |
| Geranium pusillum | Geraniaceae | L. | Angiosperm | Small-flowered Crane’s-bill |
| Geranium robertianum | Geraniaceae | L. | Angiosperm | Herb-Robert |
| Geranium sanguineum | Geraniaceae | L. | Angiosperm | Bloody Crane’s-bill |
| Geranium sylvaticum | Geraniaceae | L. | Angiosperm | Wood Crane’s-bill |
| Geum rivale | Rosaceae | L. | Angiosperm | Water Avens |
| Geum urbanum | Rosaceae | L. | Angiosperm | Wood Avens |
| Glaucium flavum | Papaveraceae | Crantz | Angiosperm | Yellow Horned-poppy |
| Glaux maritima | Primulaceae | L. | Angiosperm | Sea-milkwort |
| Glechoma hederacea | Lamiaceae | L. | Angiosperm | Ground Ivy |
| Glyceria declinata | Poaceae | Breb. | Angiosperm | Small Sweet-grass |
| Glyceria fluitans | Poaceae | (L.) R. Br. | Angiosperm | Floating Sweet-grass |
| Glyceria maxima | Poaceae | (Hatrman) O. Holmb. | Angiosperm | Reed Sweet-grass |
| Glyceria notata | Poaceae | Chevall. | Angiosperm | Plicate Sweet-grass |
| Gnaphalium norvegicum | Asteraceae | Gunnerus | Angiosperm | Highland Cudweed |
| Gnaphalium supinum | Asteraceae | L. | Angiosperm | Dwarf Cudweed |
| Gnaphalium sylvaticum | Asteraceae | L. | Angiosperm | Heath Cudweed |
| Gnaphalium uliginosum | Asteraceae | L. | Angiosperm | Marsh Cudweed |
| Goodyera repens | Orchidaceae | (L.) R. Br. | Angiosperm | Creeping Lady’s-tresses |
| Groenlandia densa | Potamogetonaceae | (L.) Fourr | Angiosperm | Opposite-leaved Pondweed |
| Gymnadenia conopsea | Orchidaceae | (L.) R. Br. | Angiosperm | Fragrant Orchid |
| Hammarbya paludosa | Orchidaceae | (L.) Kuntze | Angiosperm | Bog Orchid |
| Hardwoods | Angiosperm | Hardwoods | ||
| Hedera helix | Araliaceae | L. | Angiosperm | Ivy |
| Helianthemum nummularium | Cistaceae | (L.) Miller | Angiosperm | Common Rock-rose |
| Helictotrichon pratense | Poaceae | (L.) Besser ex Pilger | Angiosperm | Meadow Oat-grass |
| Helictotrichon pubescens | Poaceae | (Hudson) Pilger | Angiosperm | Downy Oat-grass |
| Heracleum sphondylium | Apiaceae | L. | Angiosperm | Hogweed |
| Hieracium sabaudum | Asteraceae | F. Williams | Angiosperm | Many Leaved Hieracium |
| Hieracium vulgatum | Asteraceae | F. Williams | Angiosperm | Hawkweed (sp. vulgatum) |
| Hierochloe odorata | Poaceae | (L.) P. Beauv. | Angiosperm | Holy-grass |
| Hippophae rhamnoides | Eleaginaceae | L. | Angiosperm | Sea-buckthorn |
| Hippuris vulgaris | Hippuridaceae | L. | Angiosperm | Mare’s-tail |
| Holcus lanatus | Poaceae | L. | Angiosperm | Yorkshire-fog |
| Holcus mollis | Poaceae | L. | Angiosperm | Creeping Soft-grass |
| Honckenya peploides | Caryophyllaceae | (L.) Ehrh. | Angiosperm | Sea Sandwort |
| Hordelymus europaeus | Poaceae | (L.) Jessen | Angiosperm | Wood Barley |
| Hordeum marinum | Poaceae | Hudson | Angiosperm | Sea Barley |
| Hordeum murinum | Poaceae | L. | Angiosperm | Wall Barley |
| Hordeum secalinum | Poaceae | Schreber | Angiosperm | Meadow Barley |
| Hornungia petraea | Brassicaceae | (L.) Reichb. | Angiosperm | Hutchinsia |
| Hottonia palustris | Primulaceae | L. | Angiosperm | Water-violet |
| Hyacinthoides non-scripta | Liliaceae | (L.) Chouard ex Rothm. | Angiosperm | Bluebell |
| Hydrocotyle vulgaris | Apiaceae | L. | Angiosperm | Marsh Pennywort |
| Hypericum androsaemum | Clusiaceae | L. | Angiosperm | Tutsan |
| Hypericum elodes | Clusiaceae | L. | Angiosperm | Marsh St John’s-wort |
| Hypericum hirsutum | Clusiaceae | L. | Angiosperm | Hairy St John’s-wort |
| Hypericum humifusum | Clusiaceae | L. | Angiosperm | Trailing St John’s-wort |
| Hypericum maculatum | Clusiaceae | Crantz | Angiosperm | Imperforate St John’s-wort |
| Hypericum perforatum | Clusiaceae | L. | Angiosperm | Perforate St. John’s Wort |
| Hypericum pulchrum | Clusiaceae | L. | Angiosperm | Slender St John’s-wort |
| Hypericum tetrapterum | Clusiaceae | Fries | Angiosperm | Square-stalked St John’s-wort |
| Hypochaeris glabra | Asteraceae | L. | Angiosperm | Smooth Cat’s-ear |
| Hypochaeris radicata | Asteraceae | L. | Angiosperm | Cat’s-ear |
| Ilex aquifolium | Aquifoliaceae | L. | Angiosperm | Holly |
| Inula crithmoides | Asteraceae | L. | Angiosperm | Golden-samphire |
| Iris pseudacorus | Iridaceae | L. | Angiosperm | Yellow Iris |
| Isolepis cernua | Cyperaceae | (Vahl) Roemer & Schultes | Angiosperm | Slender Club-rush |
| Isolepis setacea | Cyperaceae | (l.) R. Br. | Angiosperm | Bristle Club-rush |
| Jasione montana | Campanulaceae | L. | Angiosperm | Sheep’s-bit |
| Juncaceae | Juncaceae | Angiosperm | Rushes | |
| Juncus acutiflorus | Juncaceae | Ehrh. Ex Hoffm. | Angiosperm | Sharp-flowered Rush |
| Juncus alpinoarticulatus | Juncaceae | Cahaix | Angiosperm | Alpine Rush |
| Juncus ambiguus | Juncaceae | Guss. | Angiosperm | Frog Rush |
| Juncus articulatus | Juncaceae | L. | Angiosperm | Jointed Rush |
| Juncus balticus | Juncaceae | Willd. | Angiosperm | Baltic Rush |
| Juncus biglumis | Juncaceae | L. | Angiosperm | Two-flowered Rush |
| Juncus bufonius | Juncaceae | L. | Angiosperm | Toad Rush |
| Juncus bulbosus | Juncaceae | L. | Angiosperm | Bulbous Rush |
| Juncus castaneus | Juncaceae | Smith | Angiosperm | Chestnut Rush |
| Juncus compressus | Juncaceae | Jacq. | Angiosperm | Round-fruited Rush |
| Juncus conglomeratus | Juncaceae | L. | Angiosperm | Compact Rush |
| Juncus effusus | Juncaceae | L. | Angiosperm | Soft-rush |
| Juncus filiformis | Juncaceae | L. | Angiosperm | Thread Rush |
| Juncus foliosus | Juncaceae | Desf. | Angiosperm | Leafy Rush |
| Juncus gerardii | Juncaceae | Loisel. | Angiosperm | Saltmarsh Rush |
| Juncus inflexus | Juncaceae | L. | Angiosperm | Hard Rush |
| Juncus maritimus | Juncaceae | Lam. | Angiosperm | Sea Rush |
| Juncus squarrosus | Juncaceae | L. | Angiosperm | Heath-rush |
| Juncus subnodulosus | Juncaceae | Schrank | Angiosperm | Blunt-flowered Rush |
| Juncus trifidus | Juncaceae | L. | Angiosperm | Three-leaved Rush |
| Juncus triglumis | Juncaceae | L. | Angiosperm | Three-flowered Rush |
| Knautia arvensis | Dipsacaceae | (L.) Coulter | Angiosperm | Field Scabious |
| Kobresia simpliciuscula | Cyperaceae | Willd. | Angiosperm | False Sedge |
| Koeleria macrantha | Poaceae | (Ledeb.) Schultes | Angiosperm | Crested Hair-grass |
| Koenigia islandica | Polygonaceae | L. | Angiosperm | Iceland-purslane |
| Lactuca virosa | Asteraceae | L. | Angiosperm | Great Lettuce |
| Lamiastrum galeobdolon | Lamiaceae | (L.) Ehrend. & Polatschek | Angiosperm | Yellow Archangel |
| Lamium album | Lamiaceae | L. | Angiosperm | White Dead-nettle |
| Lamium amplexicaule | Lamiaceae | L. | Angiosperm | Henbit Dead-nettle |
| Lamium confertum | Lamiaceae | Fries | Angiosperm | Northern Dead-nettle |
| Lamium hybridum | Lamiaceae | Villars | Angiosperm | Cut-leaved Dead-nettle |
| Lamium purpureum | Lamiaceae | L. | Angiosperm | Red Dead-nettle |
| Lapsana communis | Asteraceae | L. | Angiosperm | Nipplewort |
| Lathraea squamaria | Orobranchaceae | L. | Angiosperm | Toothwort |
| Lathyrus japonicus | Fabaceae | Willd. | Angiosperm | Sea Pea |
| Lathyrus linifolius | Fabaceae | (Rechard) Baessler | Angiosperm | Bitter Vetch |
| Lathyrus palustris | Fabaceae | L. | Angiosperm | Marsh Pea |
| Lathyrus pratensis | Fabaceae | L. | Angiosperm | Meadow Vetchling |
| Lathyrus sylvestris | Fabaceae | L. | Angiosperm | Narrow-leaved Everlasting-pea |
| Lavatera arborea | Malvaceae | L. | Angiosperm | Tree-mallow |
| Lemna gibba | Lemnaceae | L. | Angiosperm | Fat Duckweed |
| Lemna minor | Lemnaceae | L. | Angiosperm | Common Duckweed |
| Lemna trisulca | Lemnaceae | L. | Angiosperm | Ivy-leaved Duckweed |
| Leontodon autumnalis | Asteraceae | L. | Angiosperm | Autumn Hawkbit |
| Leontodon hispidus | Asteraceae | L. | Angiosperm | Rough Hawkbit |
| Leontodon saxatilis | Asteraceae | Lam. | Angiosperm | Lesser Hawkbit |
| Lepidium campestre | Brassicaceae | (L.) R. Br. | Angiosperm | Field Pepperwort |
| Lepidium heterophyllum | Brassicaceae | Benth. | Angiosperm | Smith’s Pepperwort |
| Leucanthemum vulgare | Asteraceae | Lam. | Angiosperm | Oxeye Daisy |
| Leymus arenarius | Poaceae | (L.) Hochst. | Angiosperm | Lyme-grass |
| Ligusticum scoticum | Apiaceae | L. | Angiosperm | Scots Lovage |
| Ligustrum vulgare | Oleaceae | L. | Angiosperm | Wild Privet |
| Limonium humile | Plumbaginaceae | Miller | Angiosperm | Lax-flowered Sea-lavender |
| Limonium recurvum | Plumbaginaceae | Salmon | Angiosperm | Sea-lavender (sp. recurvens) |
| Limonium vulgare | Plumbaginaceae | Miller | Angiosperm | Common Sea-lavender |
| Limosella aquatica | Scrophulariaceae | L. | Angiosperm | Mudwort |
| Linaria repens | Scrophulariaceae | (L.) Miller | Angiosperm | Pale Toadflax |
| Linaria vulgaris | Scrophulariaceae | Miller | Angiosperm | Common Toadflax |
| Linnaea borealis | Caprifoliaceae | L. | Angiosperm | Twinflower |
| Linum catharticum | Linaceae | L. | Angiosperm | Fairy Flax |
| Linum perenne | Linaceae | L. | Angiosperm | Perennial Flax |
| Listera cordata | Orchidaceae | (L.) R. Br. | Angiosperm | Lesser Twayblade |
| Listera ovata | Orchidaceae | (L.) R. Br. | Angiosperm | Common Twayblade |
| Littorella uniflora | Plantaginaceae | (L.) Asch. | Angiosperm | Shoreweed |
| Lobelia dortmanna | Campanulaceae | L. | Angiosperm | Water Lobelia |
| Loiseleuria procumbens | Ericaceae | (L.) Desv. | Angiosperm | Trailing Azalea |
| Lolium perenne | Poaceae | L. | Angiosperm | Perennial Rye-grass |
| Lonicera periclymenum | Caprifoliaceae | L. | Angiosperm | Honeysuckle |
| Lotus corniculatus | Fabaceae | L. | Angiosperm | Common Bird’s-foot-trefoil |
| Lotus pedunculatus | Fabaceae | Cav. | Angiosperm | Greater Bird’s-foot-trefoil |
| Luzula arcuata | Juncaceae | Sw. | Angiosperm | Curved Wood-rush |
| Luzula campestris | Juncaceae | (L.) DC | Angiosperm | Field Wood-rush |
| Luzula multiflora | Juncaceae | (Ehrh.) Lej. | Angiosperm | Heath Wood-rush |
| Luzula pilosa | Juncaceae | (L.) Willd. | Angiosperm | Hairy Wood-rush |
| Luzula spicata | Juncaceae | (L.) DC. | Angiosperm | Spiked Wood-rush |
| Luzula sylvatica | Juncaceae | (Hudson) Gaudin | Angiosperm | Great Wood-rush |
| Lychnis alpina | Caryophyllaceae | L. | Angiosperm | Alpine Catchfly |
| Lychnis flos-cuculi | Caryophyllaceae | L. | Angiosperm | Ragged-Robin |
| Lychnis viscaria | Caryophyllaceae | L. | Angiosperm | Sticky Catchfly |
| Lycopus europaeus | Lamiaceae | L. | Angiosperm | Gypsywort |
| Lysimachia nemorum | Primulaceae | L. | Angiosperm | Yellow Pimpernel |
| Lysimachia nummularia | Primulaceae | L. | Angiosperm | Creeping-Jenny |
| Lysimachia thyrsiflora | Primulaceae | L. | Angiosperm | Tufted Loosestrife |
| Lysimachia vulgaris | Primulaceae | L. | Angiosperm | Yellow Loosestrife |
| Lythrum portula | Lythraceae | (L.) D. Webb | Angiosperm | Water-purslane |
| Lythrum salicaria | Lythraceae | L. | Angiosperm | Purple Loosestrife |
| Malus sylvestris | Rosaceae | (L.) Miller | Angiosperm | Crab Apple |
| Malva moschata | Malvaceae | L. | Angiosperm | Musk-mallow |
| Malva sylvestris | Malvaceae | L. | Angiosperm | Common Mallow |
| Matricaria discoidea | Asteraceae | DC. | Angiosperm | Pineapple Mayweed |
| Matricaria recutita | Asteraceae | L. | Angiosperm | Scented Mayweed |
| Medicago lupulina | Fabaceae | L. | Angiosperm | Black Medick |
| Melampyrum pratense | Scrophulariaceae | L. | Angiosperm | Common Cow-wheat |
| Melampyrum sylvaticum | Scrophulariaceae | L. | Angiosperm | Small Cow-wheat |
| Melica nutans | Poaceae | L. | Angiosperm | Mountain Melick |
| Melica uniflora | Poaceae | Retz. | Angiosperm | Wood Melick |
| Mentha | Lamiaceae | L. | Angiosperm | Mints |
| Mentha aquatica | Lamiaceae | L. | Angiosperm | Water Mint |
| Mentha arvensis | Lamiaceae | L. | Angiosperm | Corn Mint |
| Menyanthes trifoliata | Menyanthaceae | L. | Angiosperm | Bogbean |
| Mercurialis perennis | Euphorbiaceae | L. | Angiosperm | Dog’s Mercury |
| Mertensia maritima | Boraginaceae | (L.) Gray | Angiosperm | Oysterplant |
| Meum athamanticum | Apiaceae | Jacq | Angiosperm | Spignel |
| Milium effusum | Poaceae | L. | Angiosperm | Wood Millet |
| Minuartia rubella | Caryophyllaceae | (Wahlenb.) Hiern | Angiosperm | Mountain Sandwort |
| Minuartia sedoides | Caryophyllaceae | (L.) Hiern | Angiosperm | Cyphel |
| Minuartia verna | Caryophyllaceae | (L.) Hiern | Angiosperm | Spring Sandwort |
| Moehringia trinervia | Caryophyllaceae | (L.) Clairv. | Angiosperm | Three-nerved Sandwort |
| Molinia caerulea | Poaceae | (L.) Moench | Angiosperm | Purple Moor-grass |
| Moneses uniflora | Pyrolaceae | (L.) A. Gray | Angiosperm | One-flowered Wintergreen |
| Monotropa hypopitys | Monotropaceae | L. | Angiosperm | Yellow Bird’s-nest |
| Montia fontana | Portulacaceae | L. | Angiosperm | Blinks |
| Mycelis muralis | Asteraceae | (L.) Dumort | Angiosperm | Wall Lettuce |
| Myosotis | Boraginaceae | L. | Angiosperm | Forget-me-nots |
| Myosotis alpestris | Boraginaceae | F. W. Schmidt | Angiosperm | Alpine Forget-me-not |
| Myosotis arvensis | Boraginaceae | (L.) Hill | Angiosperm | Field Forget-me-not |
| Myosotis discolor | Boraginaceae | Pers. | Angiosperm | Changing Forget-me-not |
| Myosotis laxa | Boraginaceae | Lehm. | Angiosperm | Tufted Forget-me-not |
| Myosotis ramosissima | Boraginaceae | Rochel | Angiosperm | Early Forget-me-not |
| Myosotis scorpioides | Boraginaceae | L. | Angiosperm | Water Forget-me-not |
| Myosotis secunda | Boraginaceae | A. Murray | Angiosperm | Creeping Forget-me-not |
| Myosotis stolonifera | Boraginaceae | (DC.) Gay ex Leresche & Levier | Angiosperm | Pale Forget-me-not |
| Myosotis sylvatica | Boraginaceae | Hoffm. | Angiosperm | Wood Forget-me-not |
| Myosoton aquaticum | Caryophyllaceae | (l.) Moench | Angiosperm | Water Chickweed |
| Myrica gale | Myricaceae | L. | Angiosperm | Bog-myrtle |
| Myriophyllum alterniflorum | Haloragaceae | DC. | Angiosperm | Alternate Water-milfoil |
| Myriophyllum spicatum | Haloragaceae | L. | Angiosperm | Spiked Water-milfoil |
| Myrrhis odorata | Apiaceae | L. (Scop.) | Angiosperm | Sweet Cicely |
| Najas flexilis | Najadaceae | (Willd.) Rostkov & W. Schmidt | Angiosperm | Slender Naiad |
| Nardus stricta | Poaceae | L. | Angiosperm | Mat-grass |
| Narthecium ossifragum | Liliaceae | (L.) Hudson | Angiosperm | Bog Asphodel |
| Neottia nidus-avis | Orchidaceae | (L.) Rich. | Angiosperm | Bird’s-nest Orchid |
| Nuphar lutea | Nymphaeaceae | (L.) Smith | Angiosperm | Yellow Water-lily |
| Nuphar pumila | Nymphaeaceae | (Timm) DC. | Angiosperm | Least Water-lily |
| Nymphaea alba | Nymphaeaceae | L. | Angiosperm | White Water-lily |
| Odontites vernus | Scrophulariaceae | (Bellardi) Dumort. | Angiosperm | Red Bartsia |
| Oenanthe aquatica | Apiaceae | (L.) Poiret | Angiosperm | Fine-leaved Water-dropwort |
| Oenanthe crocata | Apiaceae | L. | Angiosperm | Hemlock Water-dropwort |
| Oenanthe fistulosa | Apiaceae | L. | Angiosperm | Tubular Water-dropwort |
| Oenanthe lachenalii | Apiaceae | C. Gmelin | Angiosperm | Parsley Water-dropwort |
| Ononis reclinata | Fabaceae | L. | Angiosperm | Small Restharrow |
| Ononis repens | Fabaceae | L. | Angiosperm | Common Restharrow |
| Ononis spinosa | Fabaceae | L. | Angiosperm | Spiny Restharrow |
| Orchis mascula | Orchidaceae | (L.) L. | Angiosperm | Early-purple Orchid |
| Orchis morio | Orchidaceae | L. | Angiosperm | Green-winged Orchid |
| Origanum vulgare | Lamiaceae | L. | Angiosperm | Wild Marjoram |
| Ornithogalum pyrenaicum | Liliaceae | L. | Angiosperm | Spiked Star-of-Bethlehem |
| Ornithopus perpusillus | Fabaceae | L. | Angiosperm | Bird’s-foot |
| Orobanche alba | Orobranchaceae | Stephan ex Willd. | Angiosperm | Thyme Broomrape |
| Orobanche hederae | Orobranchaceae | Duby | Angiosperm | Ivy Broomrape |
| Orobanche minor | Orobranchaceae | Smith | Angiosperm | Common Broomrape |
| Orobanche rapum-genistae | Orobranchaceae | Thuill. | Angiosperm | Greater Broomrape |
| Orthilia secunda | Pyrolaceae | (L.) House | Angiosperm | Serrated Wintergreen |
| Oxalis acetosella | Oxalidaceae | L. | Angiosperm | Wood-sorrel |
| Oxyria digyna | Polygonaceae | (L.) Hill | Angiosperm | Mountain Sorrel |
| Oxytropis campestris | Fabaceae | (L.) DC | Angiosperm | Yellow Oxytropis |
| Oxytropis halleri | Fabaceae | Bunge ex Koch | Angiosperm | Purple Oxytropis |
| Papaver dubium | Papaveraceae | L. | Angiosperm | Long-headed Poppy |
| Papaver rhoeas | Papaveraceae | L. | Angiosperm | Common Poppy |
| Parapholis strigosa | Poaceae | (Dumort.) C. E. Hubb. | Angiosperm | Hard-grass |
| Parentucellia viscosa | Scrophulariaceae | (L.) Caruel | Angiosperm | Yellow Bartsia |
| Parietaria judaica | Urticaceae | L. | Angiosperm | Pellitory-of-the-wall |
| Paris quadrifolia | Liliaceae | L. | Angiosperm | Herb Paris |
| Parnassia palustris | Saxifragaceae | L. | Angiosperm | Grass-of-Parnassus |
| Pedicularis palustris | Scrophulariaceae | L. | Angiosperm | Marsh Lousewort |
| Pedicularis sylvatica | Scrophulariaceae | L. | Angiosperm | Lousewort |
| Persicaria amphibia | Polygonaceae | (L.) Gray | Angiosperm | Amphibious Bistort |
| Persicaria bistorta | Polygonaceae | (L.) Samp. | Angiosperm | Common Bistort |
| Persicaria hydropiper | Polygonaceae | (L.) Spach | Angiosperm | Water-pepper |
| Persicaria lapathifolia | Polygonaceae | (L.) Gray | Angiosperm | Pale Persicaria |
| Persicaria maculosa | Polygonaceae | Gray | Angiosperm | Redshank |
| Persicaria minor | Polygonaceae | (Hudson) Opiz | Angiosperm | Small Water-pepper |
| Persicaria vivipara | Polygonaceae | (L.) Ronse Decraene | Angiosperm | Alpine Bistort |
| Petasites hybridus | Asteraceae | (L.) P. Gaertner, Meyer & Scherb. | Angiosperm | Butterbur |
| Phalaris arundinacea | Poaceae | L. | Angiosperm | Reed Canary-grass |
| Phleum alpinum | Poaceae | L. | Angiosperm | Alpine Cat’s-tail |
| Phleum arenarium | Poaceae | L. | Angiosperm | Sand Cat’s-tail |
| Phleum bertolonii | Poaceae | DC. | Angiosperm | Smaller Cat’s-tail |
| Phleum pratense | Poaceae | L. | Angiosperm | Timothy |
| Phragmites australis | Poaceae | (Cav.) Trin. Ex Steudel | Angiosperm | Common Reed |
| Phyllodoce caerulea | Ericaceae | (Linnaeus) Bab. | Angiosperm | Blue Heath |
| Pilosella flagellaris | Asteraceae | (Willd.) Sell & C. | Angiosperm | Shetland Mouse-ear-hawkweed |
| Pilosella officinarum | Asteraceae | F. Schultz & Schultz-Bip | Angiosperm | Mouse-ear-hawkweed |
| Pimpinella saxifraga | Apiaceae | (L.) Hudson | Angiosperm | Burnet-saxifrage |
| Pinguicula alpina | Lentibulariaceae | L. | Angiosperm | Alpine Butterwort |
| Pinguicula lusitanica | Lentibulariaceae | L. | Angiosperm | Pale Butterwort |
| Pinguicula vulgaris | Lentibulariaceae | L. | Angiosperm | Common Butterwort |
| Plantago coronopus | Plantaginaceae | L. | Angiosperm | Buck’s-horn Plantain |
| Plantago lanceolata | Plantaginaceae | L. | Angiosperm | Ribwort Plantain |
| Plantago major | Plantaginaceae | L. | Angiosperm | Greater Plantain |
| Plantago maritima | Plantaginaceae | L. | Angiosperm | Sea Plantain |
| Plantago media | Plantaginaceae | L. | Angiosperm | Hoary Plantain |
| Platanthera bifolia | Orchidaceae | (L.) Rich. | Angiosperm | Lesser Butterfly-orchid |
| Platanthera chlorantha | Orchidaceae | (Custer) Reichb. | Angiosperm | Greater Butterfly-orchid |
| Poa alpina | Poaceae | L. | Angiosperm | Alpine Meadow-grass |
| Poa angustifolia | Poaceae | L. | Angiosperm | Narrow-leaved Meadow-grass |
| Poa annua | Poaceae | L. | Angiosperm | Annual Meadow-grass |
| Poa compressa | Poaceae | L. | Angiosperm | Flattened Meadow-grass |
| Poa flexuosa | Poaceae | Smith | Angiosperm | Wavy Meadow-grass |
| Poa glauca | Poaceae | Vahl | Angiosperm | Glaucous Meadow-grass |
| Poa humilis | Poaceae | Ehrh. Ex Hoffm. | Angiosperm | Spreading Meadow-grass |
| Poa nemoralis | Poaceae | L. | Angiosperm | Wood Meadow-grass |
| Poa pratensis | Poaceae | L. | Angiosperm | Smooth Meadow-grass |
| Poa trivialis | Poaceae | L. | Angiosperm | Rough Meadow-grass |
| Polygala serpyllifolia | Polygalaceae | Hose | Angiosperm | Heath Milkwort |
| Polygala vulgaris | Polygalaceae | L. | Angiosperm | Common Milkwort |
| Polygonatum | Liliaceae | Miller | Angiosperm | Solomon’s Seals |
| Polygonatum odoratum | Liliaceae | (Miller) Druce | Angiosperm | Angular Solomon’s-seal |
| Polygonatum verticillatum | Liliaceae | (L.) All. | Angiosperm | Whorled Solomon’s-seal |
| Polygonum arenastrum | Polygonaceae | Boreau | Angiosperm | Equal-leaved Knotgrass |
| Polygonum aviculare | Polygonaceae | L. | Angiosperm | Knotgrass |
| Polygonum boreale | Polygonaceae | (Lange) Small | Angiosperm | Northern Knotgrass |
| Polygonum oxyspermum | Polygonaceae | Meyer & Bunge ex Ledeb. | Angiosperm | Ray’s Knotgrass |
| Polygonum rurivagum | Polygonaceae | Jordan ex Boreau | Angiosperm | Cornfield Knotgrass |
| Populus tremula | Salicaceae | L. | Angiosperm | Aspen |
| Potamogeton alpinus | Potamogetonaceae | Balbis | Angiosperm | Red Pondweed |
| Potamogeton berchtoldii | Potamogetonaceae | Fieber | Angiosperm | Small Pondweed |
| Potamogeton coloratus | Potamogetonaceae | Hornem. | Angiosperm | Fen Pondweed |
| Potamogeton compressus | Potamogetonaceae | L. | Angiosperm | Grass-wrack Pondweed |
| Potamogeton crispus | Potamogetonaceae | L. | Angiosperm | Curled Pondweed |
| Potamogeton epihydrus | Potamogetonaceae | Raf. | Angiosperm | American Pondweed |
| Potamogeton filiformis | Potamogetonaceae | Pers. | Angiosperm | Slender-leaved Pondweed |
| Potamogeton friesii | Potamogetonaceae | Rupr. | Angiosperm | Flat-stalked Pondweed |
| Potamogeton gramineus | Potamogetonaceae | L. | Angiosperm | Various-leaved Pondweed |
| Potamogeton lucens | Potamogetonaceae | L. | Angiosperm | Shining Pondweed |
| Potamogeton natans | Potamogetonaceae | L. | Angiosperm | Broad-leaved Pondweed |
| Potamogeton obtusifolius | Potamogetonaceae | Mert. & Koch | Angiosperm | Blunt-leaved Pondweed |
| Potamogeton pectinatus | Potamogetonaceae | L. | Angiosperm | Fennel Pondweed |
| Potamogeton perfoliatus | Potamogetonaceae | L. | Angiosperm | Perfoliate Pondweed |
| Potamogeton polygonifolius | Potamogetonaceae | Pourret | Angiosperm | Bog Pondweed |
| Potamogeton praelongus | Potamogetonaceae | Wulfen | Angiosperm | Long-stalked Pondweed |
| Potamogeton pusillus | Potamogetonaceae | L. | Angiosperm | Lesser Pondweed |
| Potamogeton rutilus | Potamogetonaceae | Wolfg. | Angiosperm | Shetland Pondweed |
| Potamogeton trichoides | Potamogetonaceae | Cham. & Schldl. | Angiosperm | Hairlike Pondweed |
| Potentilla anglica | Rosaceae | Laich. | Angiosperm | Trailing Tormentil |
| Potentilla anserina | Rosaceae | L. | Angiosperm | Silverweed |
| Potentilla argentea | Rosaceae | L. | Angiosperm | Hoary Cinquefoil |
| Potentilla crantzii | Rosaceae | (Crantz) G. Beck ex Fritsch | Angiosperm | Alpine Cinquefoil |
| Potentilla erecta | Rosaceae | (L.) Raeusch. | Angiosperm | Tormentil |
| Potentilla neumanniana | Rosaceae | Reichb. | Angiosperm | Spring Cinquefoil |
| Potentilla palustris | Rosaceae | (L.) Scop. | Angiosperm | Marsh Cinquefoil |
| Potentilla reptans | Rosaceae | L. | Angiosperm | Creeping Cinquefoil |
| Potentilla rupestris | Rosaceae | L. | Angiosperm | Rock Cinquefoil |
| Potentilla sterilis | Rosaceae | (L.) Garcke | Angiosperm | Barren Strawberry |
| Primula scotica | Primulaceae | Hook. | Angiosperm | Scottish Primrose |
| Primula veris | Primulaceae | L. | Angiosperm | Cowslip |
| Primula vulgaris | Primulaceae | Hudson | Angiosperm | Primrose |
| Prunella vulgaris | Lamiaceae | L. | Angiosperm | Selfheal |
| Prunus avium | Rosaceae | (L.) L. | Angiosperm | Wild Cherry |
| Prunus padus | Rosaceae | L. | Angiosperm | Bird Cherry |
| Prunus spinosa | Rosaceae | L. | Angiosperm | Blackthorn |
| Pseudorchis albida | Orchidaceae | (L.) A. & D. Loeve | Angiosperm | Small-white Orchid |
| Puccinellia distans | Poaceae | (Jacq.) Parl. | Angiosperm | Reflexed Saltmarsh-grass |
| Puccinellia maritima | Poaceae | (Hudson) Parl. | Angiosperm | Common Saltmarsh-grass |
| Pulicaria dysenterica | Asteraceae | (L.) Bernh. | Angiosperm | Common Fleabane |
| Pyrola media | Pyrolaceae | Sw. | Angiosperm | Intermediate Wintergreen |
| Pyrola minor | Pyrolaceae | L. | Angiosperm | Common Wintergreen |
| Pyrola rotundifolia | Pyrolaceae | L. | Angiosperm | Round-leaved Wintergreen |
| Quercus | Fagaceae | L. | Angiosperm | Oak |
| Quercus petraea | Fagaceae | (Mattuschka) Liebl. | Angiosperm | Sessile Oak |
| Quercus robur | Fagaceae | L. | Angiosperm | Pedunculate Oak |
| Radiola linoides | Linaceae | Roth | Angiosperm | Allseed |
| Ranunculus acris | Ranunculaceae | L. | Angiosperm | Meadow Buttercup |
| Ranunculus aquatilis | Ranunculaceae | L. | Angiosperm | Common Water-crowfoot |
| Ranunculus arvensis | Ranunculaceae | L. | Angiosperm | Corn Buttercup |
| Ranunculus auricomus | Ranunculaceae | L. | Angiosperm | Goldilocks Buttercup |
| Ranunculus baudotii | Ranunculaceae | Godron | Angiosperm | Brackish Water-crowfoot |
| Ranunculus bulbosus | Ranunculaceae | L. | Angiosperm | Bulbous Buttercup |
| Ranunculus circinatus | Ranunculaceae | Sibth. | Angiosperm | Fan-leaved Water-crowfoot |
| Ranunculus ficaria | Ranunculaceae | L. | Angiosperm | Lesser Celandine |
| Ranunculus flammula | Ranunculaceae | L. | Angiosperm | Lesser Spearwort |
| Ranunculus fluitans | Ranunculaceae | Lam. | Angiosperm | River Water-crowfoot |
| Ranunculus hederaceus | Ranunculaceae | L. | Angiosperm | Ivy-leaved Crowfoot |
| Ranunculus lingua | Ranunculaceae | L. | Angiosperm | Greater Spearwort |
| Ranunculus omiophyllus | Ranunculaceae | Ten. | Angiosperm | Round-leaved Crowfoot |
| Ranunculus peltatus | Ranunculaceae | Schrank | Angiosperm | Pond Water-crowfoot |
| Ranunculus penicillatus | Ranunculaceae | (Dumort.) Bab. | Angiosperm | Stream Water-crowfoot |
| Ranunculus repens | Ranunculaceae | L. | Angiosperm | Creeping Buttercup |
| Ranunculus reptans | Ranunculaceae | L. | Angiosperm | Creeping Spearwort |
| Ranunculus sardous | Ranunculaceae | Crantz. | Angiosperm | Hairy Buttercup |
| Ranunculus sceleratus | Ranunculaceae | L. | Angiosperm | Celery-leaved Buttercup |
| Ranunculus trichophyllus | Ranunculaceae | Chaix | Angiosperm | Thread-leaved Water-crowfoot |
| Raphanus raphanistrum | Brassicaceae | L. | Angiosperm | Wild Radish |
| Reseda lutea | Resedaceae | L. | Angiosperm | Wild Mignonette |
| Reseda luteola | Resedaceae | L. | Angiosperm | Weld |
| Rhinanthus angustifolius | Scrophulariaceae | C. Gmelin | Angiosperm | Greater Yellow-rattle |
| Rhinanthus minor | Scrophulariaceae | L. | Angiosperm | Yellow Rattle |
| Rhynchospora alba | Cyperaceae | (L.) Vahl | Angiosperm | White Beak-sedge |
| Rhynchospora fusca | Cyperaceae | (L.) Aiton f. | Angiosperm | Brown Beak-sedge |
| Ribes nigrum | Grossulariaceae | L. | Angiosperm | Black Currant |
| Ribes spicatum | Grossulariaceae | Robson | Angiosperm | Downy Currant |
| Ribes uva-crispa | Grossulariaceae | L. | Angiosperm | Gooseberry |
| Romulea columnae | Iridaceae | Sebast. & Mauri | Angiosperm | Sand Crocus |
| Rorippa amphibia | Brassicaceae | (L.) Besser | Angiosperm | Great Yellow-cress |
| Rorippa islandica | Brassicaceae | (Oeder ex Murray) Borbas | Angiosperm | Northern Yellow-cress |
| Rorippa microphylla | Brassicaceae | (Boenn) N. Hylander ex A. & D. Love | Angiosperm | Narrow-fruited Water-cress |
| Rorippa nasturtium-aquaticum | Brassicaceae | (L.) Hayek | Angiosperm | Water-cress |
| Rorippa palustris | Brassicaceae | (L.) Besser | Angiosperm | Marsh Yellow-cress |
| Rorippa sylvestris | Brassicaceae | (L.) Besser | Angiosperm | Creeping Yellow-cress |
| Rosa | Rosaceae | L. | Angiosperm | Roses |
| Rosa caesia | Rosaceae | Smith | Angiosperm | Hairy / Glaucous Dog Rose |
| Rosa canina | Rosaceae | L. | Angiosperm | Dog Rose |
| Rosa micrantha | Rosaceae | Borrer ex Smith | Angiosperm | Small-flowered Sweet-briar |
| Rosa mollis | Rosaceae | Smith | Angiosperm | Soft Downy-rose |
| Rosa pimpinellifolia | Rosaceae | L. | Angiosperm | Burnet Rose |
| Rosa rubiginosa | Rosaceae | L. | Angiosperm | Sweet-briar |
| Rosa sherardii | Rosaceae | Davies | Angiosperm | Sherard’s Downy-rose |
| Rosa tomentosa | Rosaceae | Smith | Angiosperm | Harsh Downy-rose |
| Rubus | Rosaceae | L. | Angiosperm | Brambles |
| Rubus arcticus | Rosaceae | L. | Angiosperm | Arctic Bramble |
| Rubus caesius | Rosaceae | L. | Angiosperm | Dewberry |
| Rubus chamaemorus | Rosaceae | L. | Angiosperm | Cloudberry |
| Rubus fruticosus agg. | Rosaceae | L. | Angiosperm | Bramble |
| Rubus idaeus | Rosaceae | L. | Angiosperm | Raspberry |
| Rubus saxatilis | Rosaceae | L. | Angiosperm | Stone Bramble |
| Rumex | Polygonaceae | L. | Angiosperm | Docks |
| Rumex acetosa | Polygonaceae | L. | Angiosperm | Common Sorrel |
| Rumex acetosella | Polygonaceae | L. | Angiosperm | Sheep’s Sorrel |
| Rumex aquaticus | Polygonaceae | L. | Angiosperm | Scottish Dock |
| Rumex conglomeratus | Polygonaceae | Murray | Angiosperm | Clustered Dock |
| Rumex crispus | Polygonaceae | L. | Angiosperm | Curled Dock |
| Rumex hydrolapathum | Polygonaceae | Hudson | Angiosperm | Water Dock |
| Rumex longifolius | Polygonaceae | DC. | Angiosperm | Northern Dock |
| Rumex maritimus | Polygonaceae | L. | Angiosperm | Golden Dock |
| Rumex obtusifolius | Polygonaceae | L. | Angiosperm | Broad-leaved Dock |
| Rumex sanguineus | Polygonaceae | L. | Angiosperm | Blood-veined Dock |
| Ruppia cirrhosa | Ruppiaceae | (Petagna) Grande | Angiosperm | Spiral Tasselweed |
| Ruppia maritima | Ruppiaceae | L. | Angiosperm | Beaked Tasselweed |
| Sagina apetala | Caryophyllaceae | Ard. | Angiosperm | Annual Pearlwort |
| Sagina maritima | Caryophyllaceae | G. Don | Angiosperm | Sea Pearlwort |
| Sagina nivalis | Caryophyllaceae | (Lindblad) Fries | Angiosperm | Snow Pearlwort |
| Sagina nodosa | Caryophyllaceae | (L.) Fenzl | Angiosperm | Knotted Pearlwort |
| Sagina procumbens | Caryophyllaceae | L. | Angiosperm | Procumbent Pearlwort |
| Sagina saginoides | Caryophyllaceae | (L.) Karsten | Angiosperm | Alpine Pearlwort |
| Sagina subulata | Caryophyllaceae | (Sw.) C. Presl. | Angiosperm | Heath Pearlwort |
| Salicornia dolichostachya | Chenopodiaceae | Moss | Angiosperm | Long-spiked Glasswort |
| Salicornia europaea | Chenopodiaceae | L. | Angiosperm | Common Glasswort |
| Salicornia fragilis | Chenopodiaceae | P. Ball & Tutin | Angiosperm | Yellow Glasswort |
| Salicornia nitens | Chenopodiaceae | P. Ball & Tutin | Angiosperm | Shiny Glasswort |
| Salicornia ramosissima | Chenopodiaceae | J. Woods | Angiosperm | Purple Glasswort |
| Salix | Salicaceae | L. | Angiosperm | Willow |
| Salix alba | Salicaceae | L. | Angiosperm | White Willow |
| Salix arbuscula | Salicaceae | L. | Angiosperm | Mountain Willow |
| Salix aurita | Salicaceae | L. | Angiosperm | Eared Willow |
| Salix caprea | Salicaceae | L. | Angiosperm | Goat Willow |
| Salix cinerea | Salicaceae | L. | Angiosperm | Grey Willow |
| Salix fragilis | Salicaceae | L. | Angiosperm | Crack-willow |
| Salix herbacea | Salicaceae | L. | Angiosperm | Dwarf Willow |
| Salix lanata | Salicaceae | L. | Angiosperm | Woolly Willow |
| Salix lapponum | Salicaceae | L. | Angiosperm | Downy Willow |
| Salix myrsinifolia | Salicaceae | Salisb. | Angiosperm | Dark-leaved Willow |
| Salix myrsinites | Salicaceae | L. | Angiosperm | Whortle-leaved Willow |
| Salix pentandra | Salicaceae | L. | Angiosperm | Bay Willow |
| Salix phylicifolia | Salicaceae | L. | Angiosperm | Tea-leaved Willow |
| Salix purpurea | Salicaceae | L. | Angiosperm | Purple Willow |
| Salix repens | Salicaceae | L. | Angiosperm | Creeping Willow |
| Salix reticulata | Salicaceae | L. | Angiosperm | Net-leaved Willow |
| Salix viminalis | Salicaceae | L. | Angiosperm | Osier |
| Salsola kali | Chenopodiaceae | L. | Angiosperm | Saltwort |
| Salvia verbenaca | Lamiaceae | L. | Angiosperm | Wild Clary |
| Sambucus ebulus | Caprifoliaceae | Linnaeus | Angiosperm | Dwarf Elder |
| Sambucus nigra | Caprifoliaceae | L. | Angiosperm | Elder |
| Samolus valerandi | Primulaceae | L. | Angiosperm | Brookweed |
| Sanguisorba minor | Rosaceae | Scop. | Angiosperm | Salad Burnet |
| Sanguisorba officinalis | Rosaceae | L. | Angiosperm | Great Burnet |
| Sanicula europaea | Apiaceae | L. | Angiosperm | Sanicle |
| Saussurea alpina | Asteraceae | (L.) DC. | Angiosperm | Alpine Saw-wort |
| Saxifraga aizoides | Saxifragaceae | L. | Angiosperm | Yellow Saxifrage |
| Saxifraga cernua | Saxifragaceae | L. | Angiosperm | Drooping Saxifrage |
| Saxifraga cespitosa | Saxifragaceae | L. | Angiosperm | Tufted Saxifrage |
| Saxifraga granulata | Saxifragaceae | L. | Angiosperm | Meadow Saxifrage |
| Saxifraga hirculus | Saxifragaceae | L. | Angiosperm | Marsh Saxifrage |
| Saxifraga hypnoides | Saxifragaceae | L. | Angiosperm | Mossy Saxifrage |
| Saxifraga nivalis | Saxifragaceae | L. | Angiosperm | Alpine Saxifrage |
| Saxifraga oppositifolia | Saxifragaceae | L. | Angiosperm | Purple Saxifrage |
| Saxifraga rivularis | Saxifragaceae | L. | Angiosperm | Highland Saxifrage |
| Saxifraga stellaris | Saxifragaceae | L. | Angiosperm | Starry Saxifrage |
| Saxifraga tridactylites | Saxifragaceae | L. | Angiosperm | Rue-leaved Saxifrage |
| Scabiosa columbaria | Dipsacaceae | L. | Angiosperm | Small Scabious |
| Scandix pecten-veneris | Apiaceae | L. | Angiosperm | Shepherd’s-needle |
| Scheuchzeria palustris | Scheuchzeriaceae | L. | Angiosperm | Rannoch-rush |
| Schoenoplectus lacustris | Cyperaceae | (L.) Palla | Angiosperm | Common Club-rush |
| Schoenoplectus tabernaemontani | Cyperaceae | (C. Gmelin) Palla | Angiosperm | Grey Club-rush |
| Schoenus ferrugineus | Cyperaceae | L. | Angiosperm | Brown Bog-rush |
| Schoenus nigricans | Cyperaceae | L. | Angiosperm | Black Bog-rush |
| Scilla verna | Liliaceae | Hudson | Angiosperm | Spring Squill |
| Scirpus sylvaticus | Cyperaceae | L. | Angiosperm | Wood Club-rush |
| Scleranthus annuus | Caryophyllaceae | L. | Angiosperm | Annual Knawel |
| Scrophularia auriculata | Scrophulariaceae | L. | Angiosperm | Water Figwort |
| Scrophularia nodosa | Scrophulariaceae | L. | Angiosperm | Common Figwort |
| Scrophularia umbrosa | Scrophulariaceae | Dumort. | Angiosperm | Green Figwort |
| Scutellaria galericulata | Lamiaceae | L. | Angiosperm | Skullcap |
| Scutellaria minor | Lamiaceae | Hudson | Angiosperm | Lesser Skullcap |
| Sedum acre | Crassulaceae | L. | Angiosperm | Biting Stonecrop |
| Sedum anglicum | Crassulaceae | Hudson | Angiosperm | English Stonecrop |
| Sedum rosea | Crassulaceae | L. | Angiosperm | Roseroot |
| Sedum telephium | Crassulaceae | L. | Angiosperm | Orpine |
| Sedum villosum | Crassulaceae | L. | Angiosperm | Hairy Stonecrop |
| Sempervivum tectorum | Crassulaceae | L. | Angiosperm | House-leek |
| Senecio aquaticus | Asteraceae | Hill | Angiosperm | Marsh Ragwort |
| Senecio cambrensis | Asteraceae | Rosser | Angiosperm | Welsh Groundsel |
| Senecio erucifolius | Asteraceae | L. | Angiosperm | Hoary Ragwort |
| Senecio jacobaea | Asteraceae | L. | Angiosperm | Common Ragwort |
| Senecio sylvaticus | Asteraceae | L. | Angiosperm | Heath Groundsel |
| Senecio viscosus | Asteraceae | L. | Angiosperm | Sticky Groundsel |
| Senecio vulgaris | Asteraceae | L. | Angiosperm | Groundsel |
| Seriphidium maritimum | Asteraceae | (L.) Polj. | Angiosperm | Sea Wormwood |
| Serratula tinctoria | Asteraceae | L. | Angiosperm | Saw-wort |
| Sesleria caerulea | Poaceae | (L.) Ard. | Angiosperm | Blue Moor-grass |
| Sherardia arvensis | Rubiaceae | L. | Angiosperm | Field Madder |
| Sibbaldia procumbens | Rosaceae | L. | Angiosperm | Sibbaldia |
| Silaum silaus | Apiaceae | (L.) Schinz & Thell. | Angiosperm | Pepper-saxifrage |
| Silene acaulis | Caryophyllaceae | (L.) Jacq. | Angiosperm | Moss Campion |
| Silene conica | Caryophyllaceae | L. | Angiosperm | Sand Catchfly |
| Silene dioica | Caryophyllaceae | (L.) Clairv. | Angiosperm | Red Campion |
| Silene gallica | Caryophyllaceae | L. | Angiosperm | Small-flowered Catchfly |
| Silene latifolia | Caryophyllaceae | Poiret | Angiosperm | White Campion |
| Silene noctiflora | Caryophyllaceae | L. | Angiosperm | Night-flowering Catchfly |
| Silene nutans | Caryophyllaceae | L. | Angiosperm | Nottingham Catchfly |
| Silene uniflora | Caryophyllaceae | Roth | Angiosperm | Sea Campion |
| Silene vulgaris | Caryophyllaceae | Garcke | Angiosperm | Bladder Campion |
| Sinapis arvensis | Brassicaceae | L. | Angiosperm | Charlock |
| Sisymbrium officinale | Brassicaceae | (L.) Scop. | Angiosperm | Hedge Mustard |
| Sium latifolium | Apiaceae | L. | Angiosperm | Greater Water-parsnip |
| Solanum dulcamara | Solanaceae | L. | Angiosperm | Bittersweet |
| Solidago virgaurea | Asteraceae | L. | Angiosperm | Goldenrod |
| Sonchus arvensis | Asteraceae | L. | Angiosperm | Perennial Sow-thistle |
| Sonchus asper | Asteraceae | (L.) Hill | Angiosperm | Prickly Sow-thistle |
| Sonchus oleraceus | Asteraceae | L. | Angiosperm | Smooth Sow-thistle |
| Sorbus aria | Rosaceae | (L.) Crantz | Angiosperm | Common Whitebeam |
| Sorbus arranensis | Rosaceae | Hedlund | Angiosperm | Arran Whitebeam |
| Sorbus aucuparia | Rosaceae | L. | Angiosperm | Rowan |
| Sorbus pseudofennica | Rosaceae | E. Warb. | Angiosperm | Arran Service-tree |
| Sorbus rupicola | Rosaceae | (Syme) Hedlund | Angiosperm | Rock Whitebeam |
| Sparganium angustifolium | Sparganiaceae | Michaux | Angiosperm | Floating Bur-reed |
| Sparganium emersum | Sparganiaceae | Rehmann | Angiosperm | Unbranched Bur-reed |
| Sparganium erectum | Sparganiaceae | L. | Angiosperm | Branched Bur-reed |
| Sparganium natans | Sparganiaceae | L. | Angiosperm | Least Bur-reed |
| Spergula arvensis | Caryophyllaceae | L. | Angiosperm | Corn Spurrey |
| Spergularia marina | Caryophyllaceae | (L.) Grisb. | Angiosperm | Lesser Sea-spurrey |
| Spergularia media | Caryophyllaceae | (L.) C. Presl. | Angiosperm | Greater Sea-spurrey |
| Spergularia rubra | Caryophyllaceae | (l.) J. S. & C. Presl. | Angiosperm | Sand Spurrey |
| Spergularia rupicola | Caryophyllaceae | Lebel ex Le Jolis | Angiosperm | Rock Sea-spurrey |
| Spiranthes romanzoffiana | Orchidaceae | Cham. | Angiosperm | Irish Lady’s-tresses |
| Stachys arvensis | Lamiaceae | (L.) L. | Angiosperm | Field Woundwort |
| Stachys officinalis | Lamiaceae | (L.) Trev. St. Leon | Angiosperm | Betony |
| Stachys palustris | Lamiaceae | L. | Angiosperm | Marsh Woundwort |
| Stachys sylvatica | Lamiaceae | L. | Angiosperm | Hedge Woundwort |
| Stellaria graminea | Caryophyllaceae | L. | Angiosperm | Lesser Stitchwort |
| Stellaria holostea | Caryophyllaceae | L. | Angiosperm | Greater Stitchwort |
| Stellaria media | Caryophyllaceae | (L.) Villars | Angiosperm | Common Chickweed |
| Stellaria neglecta | Caryophyllaceae | Weihe | Angiosperm | Greater Chickweed |
| Stellaria nemorum | Caryophyllaceae | L. | Angiosperm | Wood Stitchwort |
| Stellaria pallida | Caryophyllaceae | (Dumort.) Pire | Angiosperm | Lesser Chickweed |
| Stellaria palustris | Caryophyllaceae | Retz. | Angiosperm | Marsh Stitchwort |
| Stellaria uliginosa | Caryophyllaceae | Murray | Angiosperm | Bog Stitchwort |
| Suaeda maritima | Chenopodiaceae | (L.) Dumort | Angiosperm | Annual Sea-blite |
| Subularia aquatica | Brassicaceae | L. | Angiosperm | Awlwort |
| Succisa pratensis | Dipsacaceae | Moench | Angiosperm | Devil’s-bit Scabious |
| Symphytum officinale | Boraginaceae | L. | Angiosperm | Common Comfrey |
| Symphytum tuberosum | Boraginaceae | L. | Angiosperm | Tuberous Comfrey |
| Tanacetum vulgare | Asteraceae | L. | Angiosperm | Tansy |
| Taraxacum | Asteraceae | Wigg. | Angiosperm | Dandelions |
| Teesdalia nudicaulis | Brassicaceae | (L.) R. Br. | Angiosperm | Shepherd’s Cress |
| Teucrium scorodonia | Lamiaceae | L. | Angiosperm | Wood Sage |
| Thalictrum alpinum | Ranunculaceae | L. | Angiosperm | Alpine Meadow-rue |
| Thalictrum flavum | Ranunculaceae | L. | Angiosperm | Common Meadow-rue |
| Thalictrum minus | Ranunculaceae | L. | Angiosperm | Lesser Meadow-rue |
| Thlaspi arvense | Brassicaceae | L. | Angiosperm | Field Penny-cress |
| Thlaspi caerulescens | Brassicaceae | J.S. & C.S. Presl | Angiosperm | Alpine Penny-cress |
| Thymus polytrichus | Lamiaceae | A,Kerner ex Borbas | Angiosperm | Wild Garden |
| Thymus pulegioides | Lamiaceae | L. | Angiosperm | Large Garden |
| Tofieldia pusilla | Liliaceae | Hudson | Angiosperm | Scottish Asphodel |
| Torilis japonica | Apiaceae | (Houtt.) DC. | Angiosperm | Upright Hedge-parsley |
| Torilis nodosa | Apiaceae | (Hudson) Link | Angiosperm | Knotted Hedge-parsley |
| Tragopogon pratensis | Asteraceae | L. | Angiosperm | Goat’s-beard |
| Trichophorum alpinum | Cyperaceae | (L.) Pers. | Angiosperm | Cotton Deergrass |
| Trichophorum cespitosum | Cyperaceae | (L.) Hartman | Angiosperm | Deergrass |
| Trientalis europaea | Primulaceae | L. | Angiosperm | Chickweed-wintergreen |
| Trifolium | Fabaceae | L. | Angiosperm | Clovers |
| Trifolium arvense | Fabaceae | L. | Angiosperm | Hare’s-foot Clover |
| Trifolium campestre | Fabaceae | Schreber | Angiosperm | Hop Trefoil |
| Trifolium dubium | Fabaceae | Sibth. | Angiosperm | Lesser Trefoil |
| Trifolium fragiferum | Fabaceae | L. | Angiosperm | Strawberry Clover |
| Trifolium medium | Fabaceae | L. | Angiosperm | Zigzag Clover |
| Trifolium micranthum | Fabaceae | Viv. | Angiosperm | Slender Trefoil |
| Trifolium ornithopodioides | Fabaceae | L. | Angiosperm | Bird’s-foot Clover |
| Trifolium pratense | Fabaceae | L. | Angiosperm | Red Clover |
| Trifolium repens | Fabaceae | L. | Angiosperm | White Clover |
| Trifolium scabrum | Fabaceae | L. | Angiosperm | Rough Clover |
| Trifolium striatum | Fabaceae | L. | Angiosperm | Knotted Clover |
| Triglochin maritimum | Juncaginaceae | L. | Angiosperm | Sea Arrowgrass |
| Triglochin palustre | Juncaginaceae | L. | Angiosperm | Marsh Arrowgrass |
| Tripleurospermum inodorum | Asteraceae | (L.) Schultz-Bip. | Angiosperm | Scentless Mayweed |
| Tripleurospermum maritimum | Asteraceae | (L.) Koch | Angiosperm | Sea Mayweed |
| Trisetum flavescens | Poaceae | (L.) P. Beauv. | Angiosperm | Yellow Oat-grass |
| Trollius europaeus | Ranunculaceae | L. | Angiosperm | Globeflower |
| Tussilago farfara | Asteraceae | L. | Angiosperm | Colt’s-foot |
| Typha angustifolia | Typhaceae | L. | Angiosperm | Lesser Bulrush |
| Typha latifolia | Typhaceae | L. | Angiosperm | Bulrush |
| Ulex europaeus | Fabaceae | L. | Angiosperm | Gorse |
| Ulex gallii | Fabaceae | Planchon | Angiosperm | Western Gorse |
| Ulex minor | Fabaceae | Roth | Angiosperm | Dwarf Gorse |
| Ulmus glabra | Ulmaceae | Hudson | Angiosperm | Wych Elm |
| Umbilicus rupestris | Crassulaceae | (Salisb.) Dandy | Angiosperm | Navelwort |
| Urtica dioica | Urticaceae | L. | Angiosperm | Common Nettle |
| Urtica urens | Urticaceae | L. | Angiosperm | Small Nettle |
| Utricularia australis | Lentibulariaceae | R. Br. | Angiosperm | Bladderwort |
| Utricularia intermedia | Lentibulariaceae | Hayne | Angiosperm | Intermediate Bladderwort |
| Utricularia minor | Lentibulariaceae | L. | Angiosperm | Lesser Bladderwort |
| Utricularia ochroleuca | Lentibulariaceae | R. Hartman | Angiosperm | Pale Bladderwort |
| Utricularia stygia | Lentibulariaceae | Thor | Angiosperm | Nordic Bladderwort |
| Utricularia vulgaris | Lentibulariaceae | L. | Angiosperm | Greater Bladderwort |
| Vaccinium microcarpum | Ericaceae | (Turcz. Ex Rupr.) Schmalh. | Angiosperm | Small Cranberry |
| Vaccinium myrtillus | Ericaceae | L. | Angiosperm | Bilberry |
| Vaccinium oxycoccos | Ericaceae | L. | Angiosperm | Cranberry |
| Vaccinium uliginosum | Ericaceae | L. | Angiosperm | Bog Bilberry |
| Vaccinium vitis-idaea | Ericaceae | L. | Angiosperm | Cowberry |
| Valeriana dioica | Valerianaceae | L. | Angiosperm | Marsh Valerian |
| Valeriana officinalis | Valerianaceae | L. | Angiosperm | Common Valerian |
| Valerianella dentata | Valerianaceae | (L.) Pollich | Angiosperm | Narrow-fruited Cornsalad |
| Valerianella locusta | Valerianaceae | (L.) Laterr. | Angiosperm | Common Cornsalad |
| Valerianella rimosa | Valerianaceae | Bast. | Angiosperm | Broad-fruited Cornsalad |
| Verbascum thapsus | Scrophulariaceae | L. | Angiosperm | Great Mullein |
| Veronica agrestis | Scrophulariaceae | L. | Angiosperm | Green Field-speedwell |
| Veronica alpina | Scrophulariaceae | L. | Angiosperm | Alpine Speedwell |
| Veronica anagallis-aquatica | Scrophulariaceae | L. | Angiosperm | Blue Water-Speedwell |
| Veronica arvensis | Scrophulariaceae | L. | Angiosperm | Wall Speedwell |
| Veronica beccabunga | Scrophulariaceae | L. | Angiosperm | Brooklime |
| Veronica catenata | Scrophulariaceae | Pennell | Angiosperm | Pink Water-Speedwell |
| Veronica chamaedrys | Scrophulariaceae | L. | Angiosperm | Germander Speedwell |
| Veronica fruticans | Scrophulariaceae | Jacq. | Angiosperm | Rock Speedwell |
| Veronica hederifolia | Scrophulariaceae | L. | Angiosperm | Ivy-leaved Speedwell |
| Veronica montana | Scrophulariaceae | L. | Angiosperm | Wood Speedwell |
| Veronica officinalis | Scrophulariaceae | L. | Angiosperm | Heath Speedwell |
| Veronica polita | Scrophulariaceae | Fries | Angiosperm | Grey Field-speedwell |
| Veronica scutellata | Scrophulariaceae | L. | Angiosperm | Marsh Speedwell |
| Veronica serpyllifolia | Scrophulariaceae | L. | Angiosperm | Thyme-leaved Speedwell |
| Viburnum opulus | Caprifoliaceae | L. | Angiosperm | Guelder-rose |
| Vicia bithynica | Fabaceae | (L.) L. | Angiosperm | Bithynian Vetch |
| Vicia cracca | Fabaceae | L. | Angiosperm | Tufted Vetch |
| Vicia hirsuta | Fabaceae | (L.) Gray | Angiosperm | Hairy Tare |
| Vicia lathyroides | Fabaceae | L. | Angiosperm | Spring Vetch |
| Vicia lutea | Fabaceae | L. | Angiosperm | Yellow-vetch |
| Vicia orobus | Fabaceae | DC. | Angiosperm | Wood Bitter-vetch |
| Vicia sativa | Fabaceae | L. | Angiosperm | Common Vetch |
| Vicia sepium | Fabaceae | L. | Angiosperm | Bush Vetch |
| Vicia sylvatica | Fabaceae | L. | Angiosperm | Wood Vetch |
| Vicia tetrasperma | Fabaceae | (L.) Schreber | Angiosperm | Smooth Tare |
| Viola | Violaceae | L. | Angiosperm | Violets |
| Viola arvensis | Violaceae | Murray | Angiosperm | Field Pansy |
| Viola canina | Violaceae | L. | Angiosperm | Heath Dog-violet |
| Viola hirta | Violaceae | L. | Angiosperm | Hairy Violet |
| Viola lutea | Violaceae | Hudson | Angiosperm | Mountain Pansy |
| Viola palustris | Violaceae | L. | Angiosperm | Marsh Violet |
| Viola reichenbachiana | Violaceae | Jordan ex Boreau | Angiosperm | Early Dog-violet |
| Viola riviniana | Violaceae | Reichb. | Angiosperm | Common Dog-violet |
| Viola tricolor | Violaceae | L. | Angiosperm | Wild Pansy |
| Viscum album | Viscaceae | L. | Angiosperm | Mistletoe |
| Vulpia bromoides | Poaceae | (L.) Gray | Angiosperm | Squirreltail Fescue |
| Vulpia fasciculata | Poaceae | (Forsskaol) Fritsch | Angiosperm | Dune Fescue |
| Vulpia myuros | Poaceae | (L.) C. Gmelin | Angiosperm | Rat’s-tail Fescue |
| Wahlenbergia hederacea | Campanulaceae | (L.) Reichb. | Angiosperm | Ivy-leaved Bellflower |
| Zannichellia palustris | Zannichelliaceae | L. | Angiosperm | Horned Pondweed |
| Zostera angustifolia | Zosteraceae | (Hornem) Reichb. | Angiosperm | Narrow-leaved Eelgrass |
| Zostera marina | Zosteraceae | L. | Angiosperm | Eelgrass |
| Zostera noltii | Zosteraceae | Hornem. | Angiosperm | Dwarf Eelgrass |
| Diphasiastrum alpinum | Lycopodiaceae | L. | Clubmoss | Alpine Clubmoss |
| Diphasiastrum complanatum | Lycopodiaceae | (L.) Hollub | Clubmoss | Issler’s Clubmoss |
| Huperzia selago | Lycopodiaceae | (L.) Bernh. ex Schrank & Mart. | Clubmoss | Fir Clubmoss |
| Isoetes echinospora | Isoetaceae | Durieu | Clubmoss | Spring Quillwort |
| Isoetes lacustris | Isoetaceae | L. | Clubmoss | Quillwort |
| Lycopodiella inundata | Lycopodiaceae | (L.) Holub | Clubmoss | Marsh Clubmoss |
| Lycopodium annotinum | Lycopodiaceae | L. | Clubmoss | Interrupted Clubmoss |
| Lycopodium clavatum | Lycopodiaceae | L. | Clubmoss | Stag’s-horn Clubmoss |
| Selaginella selaginoides | Selaginellaceae | (L.) P. Beauv. | Clubmoss | Lesser Clubmoss |
| Asplenium adiantum-nigrum | Aspleniaceae | L. | Fern | Black Spleenwort |
| Asplenium marinum | Aspleniaceae | L. | Fern | Sea Spleenwort |
| Asplenium obovatum | Aspleniaceae | Viv. | Fern | Lanceolate Spleenwort |
| Asplenium ruta-muraria | Aspleniaceae | L. | Fern | Wall Rue |
| Asplenium septentrionale | Aspleniaceae | (L.) Hoffm. | Fern | Forked Spleenwort |
| Asplenium trichomanes | Aspleniaceae | L. | Fern | Common Maiden-hair Spleenwort |
| Asplenium trichomanes-ramosum | Aspleniaceae | L. | Fern | Green Spleenwort |
| Athyrium distentifolium | Woodsiaceae | Tausch ex Opiz | Fern | Alpine Lady-fern |
| Athyrium filix-femina | Woodsiaceae | (L.) Roth | Fern | Woodland Lady-fern |
| Athyrium flexile | Athyriaceae | (Newm.) Druce | Fern | Flexile Lady Fern |
| Blechnum spicant | Blechnaceae | (L.) Roth | Fern | Hard-fern |
| Botrychium lunaria | Ophioglossaceae | (L.) Sw. | Fern | Moonwort |
| Ceterach officinarum | Aspleniaceae | Willd. | Fern | Rustyback |
| Cryptogramma crispa | Adiantaceae | (L.) R. Br. Ex Hook | Fern | Parsley Fern |
| Cystopteris dickieana | Athyriaceae | Sim | Fern | Dickie’s Fern |
| Cystopteris fragilis | Woodsiaceae | (L.) Bernh. | Fern | Brittle Bladder-fern |
| Cystopteris montana | Woodsiaceae | Sim | Fern | Mountain Bladder-fern |
| Dryopteris aemula | Dryopteridaceae | (Aiton) Kuntze | Fern | Hay-scented Buckler-fern |
| Dryopteris affinis | Dryopteridaceae | (Lowe) Fraser-Jenkins | Fern | Scaly Male-fern |
| Dryopteris carthusiana | Dryopteridaceae | (Villars) H. P. Fuchs | Fern | Narrow Buckler-fern |
| Dryopteris cristata | Dryopteridaceae | (L.) A. Gray | Fern | Crested Buckler-fern |
| Dryopteris dilatata | Dryopteridaceae | (Hoffm.) A. Gray | Fern | Broad Buckler-fern |
| Dryopteris expansa | Dryopteridaceae | (C. Presl) Fraser-Jenkins & Jermy | Fern | Northern Buckler-fern |
| Dryopteris filix-mas | Dryopteridaceae | (L.) Schott. | Fern | Male Fern |
| Dryopteris oreades | Dryopteridaceae | Fomin | Fern | Mountain Male-fern |
| Dryopteris remota | Dryopteridaceae | (A. Braun ex Doell) Druce | Fern | Scaly Buckler-fern |
| Dryopteris submontana | Dryopteridaceae | (Fraser-Jenkins & Jermy) Fraser-Jenkins | Fern | Rigid Buckler-fern |
| Ferns – general | Fern | Ferns | ||
| Gymnocarpium dryopteris | Woodsiaceae | (L.) Newman | Fern | Oak Fern |
| Gymnocarpium robertianum | Woodsiaceae | (Hoffm.) Newman | Fern | Limestone Fern |
| Hymenophyllum tunbrigense | Hymenophyllaceae | (L.) Smith | Fern | Tunbridge Filmy-fern |
| Hymenophyllum wilsonii | Hymenophyllaceae | Hook. | Fern | Wilson’s Filmy-fern |
| Ophioglossum azoricum | Ophioglossaceae | C. Presl. | Fern | Small Adder’s-tongue |
| Ophioglossum vulgatum | Ophioglossaceae | L. | Fern | Adder’s-tongues |
| Oreopteris limbosperma | Thelypteridaceae | (Bellardi ex All.) Holub | Fern | Lemon-scented Fern |
| Osmunda regalis | Osmundaceae | L. | Fern | Royal Fern |
| Phegopteris connectilis | Thelypteridaceae | (Michaux) Watt | Fern | Beech Fern |
| Phyllitis scolopendrium | Aspleniaceae | (L.) Newman | Fern | Hart’s Tongue |
| Pilularia globulifera | Marsiliaceae | L. | Fern | Pillwort |
| Polypodium cambricum | Polypodiaceae | L. | Fern | Southern Polypody |
| Polypodium interjectum | Polypodiaceae | Shivas | Fern | Intermediate Polypody |
| Polypodium vulgare | Polypodiaceae | L. | Fern | Polypody |
| Polystichum aculeatum | Dryopteridaceae | (L.) Roth | Fern | Hard Shield-fern |
| Polystichum lonchitis | Dryopteridaceae | (L.) Roth | Fern | Holly-fern |
| Polystichum setiferum | Dryopteridaceae | (Forsskaol) Moore ex Woynar | Fern | Soft Shield-fern |
| Pteridium aquilinum | Dennstaedtiaceae | (L.) Kuhn | Fern | Bracken |
| Thelypteris palustris | Thelypteridaceae | Schott | Fern | Marsh Fern |
| Trichomanes speciosum | Hymenophyllaceae | Willd. | Fern | Killarney Fern |
| Woodsia alpina | Woodsiaceae | (Bolton) Gray | Fern | Alpine Woodsia |
| Woodsia ilvensis | Woodsiaceae | (L.) Br. | Fern | Oblong Woodsia |
| Agaricus abruptibulbis | Agaricaceae | Peck | Fungus | Agaricus abrubtibulbis |
| Agaricus arvensis | Agaricaceae | Sch. | Fungus | Horse mushroom |
| Agaricus augustus | Agaricaceae | Fr. | Fungus | The Prince |
| Agaricus bernardii | Agaricaceae | (Quel.) Sacc | Fungus | Bernard’s Agaricus |
| Agaricus campestris | Agaricaceae | L. | Fungus | Field Mushroom |
| Agaricus langei | Agaricaceae | (Moll & J. Schaef.) Moll. | Fungus | Lange’s Agaricus |
| Agaricus macrosporus | Agaricaceae | (Moll.) Pilat | Fungus | Agaricus macroporus |
| Agaricus silvaticus | Agaricaceae | Sch. | Fungus | Agaricus silvaticus |
| Agaricus silvicola | Agaricaceae | (Vitt.) Sacc. | Fungus | Wood mushroom |
| Aleuria aurantia | Pyrenomataceae | (Pers.) Fuck. | Fungus | Orange peel fungus |
| Amanita crocea | Amanitaceae | (Quel.) Sing. | Fungus | Amanita crocea |
| Amanita fulva | Amanitaceae | (Sch.) Seyot | Fungus | Tawny grisette |
| Amanita rubescens | Amanitaceae | Pers. | Fungus | The Blusher |
| Amanita vaginata | Amanitaceae | (Bull.) Vitt. | Fungus | Grisette |
| Armillaria mellea s.l. | Tricholomataceae | (Vahl) Kumm. | Fungus | Honey fungus |
| Auricularia auricula-judae | Auriculariaceae | (L.) Schroet. | Fungus | Jew’s Ear |
| Boletus appendiculatus | Boletaceae | Sch. | Fungus | Boletus appendiculatus |
| Boletus edulis | Boletaceae | Bull. | Fungus | Cep |
| Boletus pinophilus | Boletaceae | Pil. & Derm. | Fungus | Pine Bolete |
| Boletus reticulatus | Boletaceae | Sch. | Fungus | Reticulated Bolete |
| Bovista plumbea | Lycoperdaceae | Pers. | Fungus | Bovista plumbea |
| Bulgaria inquinans | Heliotaceae | (Pers.) Fr. | Fungus | Bulgaria inquinans |
| Calocybe gambosa | Tricholomataceae | (Fr.) Donk. | Fungus | St. George’s mushroom |
| Calvatia excipuliformis | Lycoperdaceae | (Sch.) Perdeck | Fungus | Calvatia excipuliformis |
| Calvatia utriformis | Lycoperdaceae | (Bull.) Jaap | Fungus | Calvatia utriformis |
| Cantharellula cyathiformis | Tricholomataceae | (Bull.) Sing | Fungus | Goblet |
| Cantharellus amethysteus | Cantharellaceae | (Quel.) Sacc. | Fungus | Cantharellus amethysteus |
| Cantharellus cibarius | Cantharellaceae | Fr. | Fungus | Chanterelle |
| Cantharellus lutescens | Cantharellaceae | (Pers.) Fr. | Fungus | Cantharellus lutescens |
| Cantharellus tubaeformis | Cantharellaceae | (Bull.) Fr. | Fungus | Winter Chanterelle |
| Chalciporus piperatus | Boletaceae | (Bull.) Bat. | Fungus | Peppery boletus |
| Claviceps purpurea | (Fr.) Tul. | Fungus | Ergot | |
| Clitocybe fragrans | Tricholomataceae | (With.) Kumm. | Fungus | Clitocybe fragrans |
| Clitocybe geotropa | Tricholomataceae | (Bull.) Quel. | Fungus | Clitocybe geotropa |
| Clitocybe odora | Tricholomataceae | (Bull.) Kumm. | Fungus | Anise Cap |
| Clitopilus prunulus | Entolomataceae | (Scop.) Kumm. | Fungus | The Miller |
| Coprinus comatus | Coprinaceae | (Mull.) Pers. | Fungus | Shaggy Inkcap |
| Cortinarius cinnamomeus | Cortinariaceae | (L.) Fr. | Fungus | Cortinarius cinnamomeus |
| Cortinarius croceus | Cortinariaceae | (Sch.) Hoil. | Fungus | Cortinarius croceus |
| Cortinarius malicorus | Cortinariaceae | Fr. | Fungus | Cortinarius malicorus |
| Cortinarius sanguineus | Cortinariaceae | (Wulf) Fr. | Fungus | Cortinarius sanguineus |
| Cortinarius semisanguineus | Cortinariaceae | (Fr.) Gill. | Fungus | Cortinarius semisanguineus |
| Craterellus cornucopioides | Cantharellaceae | (L.) Pers. | Fungus | Horn of plenty |
| Cystoderma amianthinum | Tricholomataceae | (Scop.) Fayod | Fungus | Cystoderma amianthinum |
| Daedalea quercina | Coriolaceae | (L.) Fr. | Fungus | Daedalea quercina |
| Fistulina hepatica | Fistulinaceae | (Sch.) Fr. | Fungus | Beefsteak fungus |
| Flammulina velutipes | Tricholomataceae | Curtis (Karst.) | Fungus | Velvet shank |
| Fomes fomentarius | Fomitaceae | (L.) Fr. | Fungus | Touchwood Fungus |
| Fungi – general | Fungus | Fungi | ||
| Grifola frondosa | Polyporaceae | (Dicks.) S. F. Gray | Fungus | Grifola frondosa |
| Gymnopilus penetrans | Crepidotaceae | (Fr.) Murr. | Fungus | Gymnopilus penetrans |
| Gymnopilus spectabilis | Crepidotaceae | (Fr.) A. H. Smith | Fungus | Gymnopilus spectabilis |
| Haplopilus rutilans | Bjerkanderaceae | (Pers.) Karst. | Fungus | Haplopilus rutilans |
| Helvella crispa | Helvellaceae | (Scop.) Fr. | Fungus | Common white helvella |
| Helvella lacunosa | Helvellaceae | Afz. | Fungus | Black helvella |
| Hydnellum spp. | Bankeraceae | – | Fungus | Hydnellum spp. |
| Hydnum repandum | Hydnaceae | L. | Fungus | Hedgehog Mushroom |
| Hygrocybe coccinea | Hygrophoraceae | (Sch.) Kumm. | Fungus | Scarlet hood |
| Hygrocybe punicea | Hygrophoraceae | (Fr.) Kumm. | Fungus | Crimson wax cap |
| Hygrophorus hypothejus | Hygrophoraceae | (Fr.) Fr. | Fungus | Hygrophorus hypothejus |
| Hygrophorus niveus | Hygrophoraceae | (Scop.) Fr. | Fungus | Snowy wax cap |
| Hygrophorus pratensis | Hygrophoraceae | (Pers.) Fr. | Fungus | Meadow wax cap |
| Hypholoma capnoides | Strophariaceae | (Fr.) Kumm. | Fungus | Hypholoma capnoides |
| Hypholoma fasciculare | Strophariaceae | (Huds.) Kumm. | Fungus | Sulphur-Tuft |
| Inonotus hispidus | Hymenochaetaceae | ? | Fungus | Inonotus hispidus |
| Krombholziella quercina | Boletaceae | (Pil. Ex Green & Watl.) Bon | Fungus | Krombholziella quercina |
| Krombholziella scabra | Boletaceae | (Bull.: Fr.) S.F. Gray | Fungus | Brown birch bolete |
| Krombholziella versipellis | Boletaceae | (Fr.) Bon | Fungus | Orange birch bolete |
| Kuehneromyces mutabilis | Strophariaceae | (Scop.) Sing. & A. H. Smith | Fungus | Kuehneromyces mutabilis |
| Laccaria amethystea | Tricholomataceae | (Bull.) Murr. | Fungus | Amethyst deceiver |
| Laccaria laccata s.l. | Tricholomataceae | (Scop.) Bk. & Br. | Fungus | Deceiver |
| Lactarius deliciosus | Russulaceae | (L.) S. F. Gray | Fungus | Saffron milk-cap |
| Lactarius deterrimus | Russulaceae | Groger | Fungus | Lactarius deterrimus |
| Lactarius glyciosmus | Russulaceae | (Fr.) Fr. | Fungus | Coconut-scented milk-cap |
| Lactarius volemus | Russulaceae | (Fr.) Fr. | Fungus | Lactarius volemus |
| Laetiporus sulphureus | Bjerkanderaceae | (Bull.) Murr. | Fungus | Chicken of the woods |
| Langermannia gigantea | Lycoperdaceae | (Batsch) Rostk. | Fungus | Giant Puffball |
| Lentinellus cochleatus | Pleurotaceae | (Hoffm.) Karst. | Fungus | Lentinellus cochleatus |
| Lepista nuda | Tricholomataceae | (Bull.) Cke. | Fungus | Wood blewit |
| Lepista saeva | Tricholomataceae | (Fr.) Orton | Fungus | Field blewit |
| Lepista sordida | Tricholomataceae | (Fr.) Sing. | Fungus | Lepista sordida |
| Leucopaxillus giganteus | Tricholomataceae | (Leyss.) Sing. | Fungus | Leucopaxillus giganteus |
| Lycoperdaceae | Lycoperdaceae | Fungus | Puffballs | |
| Lycoperdon perlatum | Lycoperdaceae | Pers. | Fungus | Common puffball |
| Lycoperdon pyriforme | Lycoperdaceae | Sch. | Fungus | Lycoperdon pyriforme |
| Lyophyllum decastes | Tricholomataceae | (Fr.) Sing. | Fungus | Lyophyllum decastes |
| Macrolepiota mastoidea | Agaricaceae | (Fr.) Sing. | Fungus | Macrolepiota mastoidea |
| Macrolepiota procera | Agaricaceae | (Scop.) Sing | Fungus | Parasol mushroom |
| Macrolepiota rhacodes | Agaricaceae | (Vitt.) Sing. | Fungus | Shaggy parasol |
| Marasmius oreades | Marasmiaceae | (Bolt.) Fr. | Fungus | Fairy ring champignon |
| Morchella esculenta | Morchellaceae | (L.) Pers. | Fungus | Morel |
| Nothopanus porrigens | Pleurotaceae | (Pers.) Sing. | Fungus | Nothopanus porrigens |
| Oudemansiella mucida | Tricholomataceae | (Schrad.) V. Hohn. | Fungus | Porcelain fungus, Poached egg fungus |
| Paxillus atrotomentosus | Paxillaceae | (Batsch) Fr. | Fungus | Paxillus atroromentosus |
| Paxillus involutus | Paxillaceae | (Batsch) Fr. | Fungus | Paxillus involutus |
| Phaeolus schweintzii | Bjerkanderaceae | (Fr.) Pat. | Fungus | Phaeolus schweintzii |
| Pholiota spp. | Strophariaceae | – | Fungus | Pholiota spp. |
| Piptoporus betulinus | Bjerkanderaceae | (Bull.) Karst | Fungus | Birch polypore |
| Pleurotus cornucopiae | Pleurotaceae | (Paul) Gill. | Fungus | Pleurotus cornucopiae |
| Pleurotus ostreatus | Pleurotaceae | (Jacq.) Kumm. | Fungus | Oyster mushroom |
| Polyporus squamosus | Polyporaceae | (Huds.) Fr. | Fungus | Dryad’s Saddle |
| Pseudocraterellus sinuosus | Cantharellaceae | (Fr.) Corner ex Heinem | Fungus | Pseudocraterellus sinuosus |
| Psilocybe semilanceata | Strophariaceae | (Fr.) Kumm. | Fungus | Liberty Cap |
| Ramaria spp. | Clavariaceae | – | Fungus | Ramaria spp. |
| Rozites caperata | Cortinariaceae | (Pers.) Karst. | Fungus | Rozites caperata |
| Russula claroflava | Russulaceae | Grove | Fungus | Yellow swamp russula |
| Russula cyanoxantha | Russulaceae | (Sch.) Fr. | Fungus | Russula cyanoxantha |
| Russula krombholzii | Russulaceae | Shaffer | Fungus | Blackish-purple russula |
| Russula nitida | Russulaceae | (Pers.) Fr. | Fungus | Russula nitida |
| Russula ochroleuca | Russulaceae | Pers. | Fungus | Russula ochroleuca |
| Russula vesca | Russulaceae | Fr. | Fungus | Bare-toothed russula |
| Russula xerampelina | Russulaceae | (Sch.) Fr. | Fungus | Russula xerampelina |
| Sarcodon imbricatum | Bankeraceae | (L.) Karst. | Fungus | Sarcodon imbricatum |
| Sarcoscypha coccinea | Sarcoscyphaceae | (Jacq.) Lamb. | Fungus | Scarlet elf cup |
| Sparassis crispa | Sparassidaceae | (Wulf.) Fr. | Fungus | Cauliflower fungus, Brain fungus |
| Strobilurus esculentus | Marasmiaceae | (Wulf.) Sing. | Fungus | Strobilurus esculentus |
| Suillus bovinus | Boletaceae | (L.) Kuntze | Fungus | Suillus bovinus |
| Suillus grevillei | Boletaceae | (Klot.) Sing | Fungus | Larch bolete |
| Suillus luteus | Boletaceae | (L.) S. F. Gray | Fungus | Slippery Jack |
| Suillus variegatus | Boletaceae | (Swartz) Kuntze | Fungus | Suillus variegatus |
| Thelophora palmata | Thelophoraceae | ? | Fungus | Thelophora palmata |
| Tricholoma columbetta | Tricholomataceae | (Fr.) Kumm. | Fungus | Tricholoma columbetta |
| Tricholoma equestre | Tricholomataceae | (L.) Quel. | Fungus | Tricholoma equestre |
| Tricholoma portentosum | Tricholomataceae | (Fr.) Quel. | Fungus | Tricholoma portentosum |
| Tricholoma terreum | Tricholomataceae | (Sch.) Kumm. | Fungus | Tricholoma terreum |
| Tricholompsis rutilans | Tricholomataceae | (Sch.) Sing. | Fungus | Tricholompsis rutilans |
| Tuber blottii | Tuberaceae | Desl. | Fungus | White truffle |
| Vascellum pratense | Lycoperdaceae | (Pers.) Kreisel | Fungus | Vascellum pratense |
| Xerocomus badius | Boletaceae | (Fr.) Kuhn & Gilb. | Fungus | Bay boletus |
| Xerocomus chrysenteron | Boletaceae | (Bull.) Quel | Fungus | Red-cracked boletus |
| Juniperus communis | Cupressaceae | L. | Gymnosperm | Common Juniper |
| Pinus sylvestris | Pinaceae | L. | Gymnosperm | Scots Pine |
| Taxus baccata | Taxaceae | L. | Gymnosperm | Yew |
| Equisetum | Equisetaceae | L. | Horsetail | Horsetails |
| Equisetum arvense | Equisetaceae | L. | Horsetail | Field Horsetail |
| Equisetum fluviatile | Equisetaceae | L. | Horsetail | Water Horsetail |
| Equisetum hyemale | Equisetaceae | L. | Horsetail | Rough Horsetail |
| Equisetum palustre | Equisetaceae | L. | Horsetail | Marsh Horsetail |
| Equisetum pratense | Equisetaceae | Ehrh. | Horsetail | Shady Horsetail |
| Equisetum sylvaticum | Equisetaceae | L. | Horsetail | Wood Horsetail |
| Equisetum telmateia | Equisetaceae | Ehrh. | Horsetail | Great Horsetail |
| Equisetum variegatum | Equisetaceae | Schleicher | Horsetail | Variegated Horsetail |
| Equisetum x moorei | Equisetaceae | Newman | Horsetail | Moore’s Horsetail |
| Aspicilia calcarea | Hymeneliaceae | (L.) Korber | Lichen | Aspicilia calcarea |
| Cladonia coccifera | Cladoniaceae | (L.) Willd. | Lichen | Cladonia coccifera agg. |
| Cladonia pyxidata | Cladoniaceae | Hoffm. | Lichen | Tree Lungwort |
| Diploschites | Thelotremataceae | Norman | Lichen | Diploschites spp. |
| Evernia prunastri | Parmeliaceae | (L.) Ach. | Lichen | Stag’s Horn Lichen |
| Hypogymnia physodes | Parmeliaceae | (L.) Nyl. | Lichen | Puffed Shield Lichen |
| Lobaria pulmonaria | Stictaceae | (L.) Hoffm. | Lichen | Lungwort |
| Lobaria scrobiculata | Stictaceae | (Scop.) DC. | Lichen | Aikraw |
| Ochrolechia parella | Pentusariaceae | (L.) Massal. | Lichen | Ochrolechia parella |
| Ochrolechia tartarea | Pertusariaceae | (L.) Massal. | Lichen | Cudbear |
| Ophioparma ventosa | Ophioparmaceae | (L.) Massal. | Lichen | Ophioparma ventosa |
| Parmelia | Parmeliaceae | Ach. | Lichen | Crotals |
| Parmelia caperata | Parmeliaceae | (L.) Ach. | Lichen | Parmelia caperata |
| Parmelia conspersa | Parmeliaceae | (Ehrh. Ex Ach.) Ach. | Lichen | Parmelia conspersa |
| Parmelia omphalodes | Parmeliaceae | (L.) Ach. | Lichen | Parmelia omphalodes |
| Parmelia saxatilis | Parmeliaceae | (L.) Ach. | Lichen | Parmelia saxatilis |
| Peltigera canina | Peltigeraceae | (L.) Willd. | Lichen | Dog Lichen |
| Platismatia glauca | Parmeliaceae | (L.) Culb. & C. Culb. | Lichen | Platismatia glauca |
| Pseudevernia furfuracea | Parmeliaceae | (L.) Zopf | Lichen | Tree Moss |
| Ramalina siliquosa | Usneaceae | (Huds.) A. L. Sm | Lichen | Sea Ivory |
| Ramalina subfarinacea | Usneaceae | (Nyl. Ex Crombie) Nyl. | Lichen | Ramilina subfarinacea |
| Sphaerophorus globosus | Sphaerophoraceae | (Huds.) Vaino | Lichen | Coral Lichen |
| Tephromela atra | Lecanoraceae | (Huds.) Haefellner ex Kalb | Lichen | Tephromela atra |
| Umbilicaria pustulata | Umbilicariaceae | Lichen | Umbilicaria pustulata | |
| Usnea | Usneaceae | Hill | Lichen | Beard Lichens |
| Usnea subfloridana | Usneaceae | Stirton | Lichen | Usnea subfloridana |
| Xanthoria parietina | Teloschistacaceae | (L.) Th. Fr. | Lichen | Xanthoria parietina |
| Liverworts – general | Liverwort | Liverworts | ||
| Marchantia polymorpha | Marchantiaceae | L. | Liverwort | Star-headed Liverwort |
| Encalypta vulgaris | Encalyptaceae | Hedw. | Moss | Extinguisher Moss |
| Mosses – general | Moss | Mosses | ||
| Polytrichum commune | Polytrichaceae | Hedw. | Moss | Hair Mosses |
| Sphagnum | Sphagnaceae | L. | Moss | Bog Moss |