| Acer campestre | field maple | Page 1 |
| Acer platanoides | Norway maple | Page 1 |
| Acer pseudoplantanus | sycamore | Page 1 |
| Aceras anthropophorum | man orchid | Page 1 |
| Achillea millefolium | yarrow | Page 1 |
| Achillea ptarmica | sneezewort | Page 1 |
| Acorus calamus | sweet-flag | Page 1 |
| Adoxa moschatellina | moschatel | Page 1 |
| Aegopodium podagraria | ground-elder | Page 1 |
| Aesculus hippocastanus | horse-chestnut | Page 1 |
| Aethusa cynapium | fool's-parsley | Page 1 |
| Agrimonia eupatoria | agrimony | Page 1 |
| Agrimonia procera | fragrant agrimony | Page 1 |
| Agrostis canina | velvet bent | Page 1 |
| Agrostis capillaris | common bent | Page 1 |
| Agrostis gigantea | black bent | Page 1 |
| Agrostis stolonifera | creeping bent | Page 1 |
| Agrostis vinealis | brown bent | Page 1 |
| Aira caryophyllea | silver hair-grass | Page 1 |
| Aira praecox | early hair-grass | Page 1 |
| Ajuga reptans | bugle | Page 3 |
| Alchemilla alpina | alpine lady's-mantle | Page 3 |
| Alchemilla filicaulis | hairy lady's-mantle | Page 3 |
| Alchemilla glabra | smooth lady's-mantle | Page 3 |
| Alchemilla vulgaris agg. | lady's-mantle | Page 3 |
| Alchemilla xanthochlora | intermediate lady's-mantle | Page 3 |
| Alisma plantago-aquatica | water-plantain | Page 3 |
| Alliaria petiolata | garlic-mustard | Page 3 |
| Allium triquetrum | three-cornered leek | Page 3 |
| Allium ursinum | ramsons | Page 3 |
| Aliium vineale | wild onion | Page 3 |
| Alnus glutinosa | alder | Page 3 |
| Alopecurus geniculatus | marsh foxtail | Page 3 |
| Alopecuros myosuroides | black-grass | Page 3 |
| Alopecurus pratensis | meadow foxtail | Page 3 |
| Althaea officinalis | marsh-mallow | Page 3 |
| Ammophila arenaria | marram | Page 3 |
| Anacamptis pyramidalis | pyramidal orchid | Page 3 |
| Anagallis arvensis | scarlet pimpernel | Page 3 |
| Anagallis tenella | bog pimpernel | Page 3 |
| Anaphalis margaritacea | pearly everlasting | Page 5 |
| Anchusa arvensis | bugloss | Page 5 |
| Anemone nemorosa | wodd anemone | Page 5 |
| Angelica sylvestris | wild angelica | Page 5 |
| Anisantha sterilis | barren brome | Page 5 |
| Antennaria dioica | mountain everlasting | Page 5 |
| Anthemis cotula | stinking chamomile | Page 5 |
| Anthoxanthum odoratum | sweet vernal-grass | Page 5 |
| Anthriscus caucalis | bur chervil | Page 5 |
| Anthriscus sylvestris | cow parsley | Page 5 |
| Anthyllis vulneraria | kidney vetch | Page 5 |
| Antirrhinum majus | snapdragon | Page 5 |
| Aphanes arvensis | parsley piert | Page 5 |
| Aphanes australis | slender parsley-piert | Page 5 |
| Apium graveolens | wild celery | Page 5 |
| Apium nodiflorum | fool's water-cress | Page 5 |
| Aquilegia vulgaris | columbine | Page 5 |
| Arabidopsis thaliana | Thale cress | Page 5 |
| Arabis hirsuta | hairy rock-gress | Page 5 |
| Arctium lappa | greater burdock | Page 5 |
| Arctium minus | lesser burdock | Page 7 |
| Arctium nemorosum | wood burdock | Page 7 |
| Arctostaphylos uva-ursi | bearberry | Page 7 |
| Arenaria serpyllifolia | thyme-leaved sandwort | Page 7 |
| Armeria maritima | thrift | Page 7 |
| Armoracia rusticana | horse-radish | Page 7 |
| Arrhenatherum elatius | false oat-grass | Page 7 |
| Artemisia absinthium | wormwood | Page 7 |
| Artemisia verlotiorum | Chinese mugwort | Page 7 |
| Artemisia vulgaris | mugwort | Page 7 |
| Arum maculatum | lords-and-ladies | Page 7 |
| Asparagus officinalis | asparagus | Page 7 |
| Asperula cynanchica | squinancywort | Page 7 |
| Asplenium adiantum-nigrum | black spleenwort | Page 7 |
| Asplenium marinum | sea spleenwort | Page 7 |
| Asplenium ruta-muraria | wall-rue | Page 7 |
| Aspenium trichomanes | maidenhair spleenwort | Page 7 |
| Asplenium viride | green spleenwort | Page 7 |
| Aster tripolium | sea aster | Page 7 |
| Aster x salignus | common Michaelmas-daisy | Page 7 |
| Astragalus danicus | purple milk-vetch | Page 9 |
| Astragalus glycophyllos | wild liquorice | Page 9 |
| Athyrium filix-femina | lady fern | Page 9 |
| Atriplex laciniata | frosted orache | Page 9 |
| Atriplex littoralis | grass-leaved orache | Page 9 |
| Atriplex patula | common orache | Page 9 |
| Atriplex portucaloides | sea purslane | Page 9 |
| Atriplex prostrata | spear-leaved orache | Page 9 |
| Atropa belladonna | deadly nightshade | Page 9 |
| Avena fatua | wild oat | Page 9 |
| Azolla filiculoides | water fern | Page 9 |
| Baldellia ranunculoides | lesser water-plantain | Page 9 |
| Ballota nigra | black horehound | Page 9 |
| Barbarea vulgaris | winter-cress | Page 9 |
| Bellis perennis | daisy | Page 9 |
| Berberis vulgaris | barberry | Page 9 |
| Berula erecta | lesser water-parsnip | Page 9 |
| Beta vulgaris | beet | Page 9 |
| Betula pendula | silver birch | Page 9 |
| Betula pubescens | downy birch | Page 9 |
| Bidens cernua | nodding bur-marigold | Page 11 |
| Bidens tripartita | trifid bur-marigold | Page 11 |
| Blackstonia perfoliata | yellow-wort | Page 11 |
| Blechnum spicant | hard fern | Page 11 |
| Blysmus compresssus | flat-sedge | Page 11 |
| Blysmus rufus | saltmarsh flat-sedge | Page 11 |
| Bolboschoenus maritimus | sea club-rush | Page 11 |
| Botrychium lunaria | moonwort | Page 11 |
| Brachypodium pinnatum | tor-grass | Page 11 |
| Brachpodium sylvaticum | false-brome | Page 11 |
| Brassica napus | rape | Page 11 |
| Brassica nigra | black mustard | Page 11 |
| Brassica oleracea | cabbage | Page 11 |
| Briza media | quaking-grass | Page 11 |
| Bromopsis erecta | upright brome | Page 11 |
| Bromopsis ramosa | hairy brome | Page 11 |
| Bromus hordeaceus | soft-brome | Page 11 |
| Bryonia dioica | white bryony | Page 11 |
| Buddleja davidii | butterfly bush | Page 11 |
| Butomus umbellatus | flowering rush | Page 11 |
| Cakile maritima | sea rocket | Page 13 |
| Calamagrostis epigejos | wood small-reed | Page 13 |
| Callitriche stagnalis | common water-starwort | Page 13 |
| Calluna vulgaris | heather | Page 13 |
| Caltha palustris | marsh marigold | Page 13 |
| Calystegia sepium | hedge bindweed | Page 13 |
| Calystegia silvatica | large bindweed | Page 13 |
| Calystegia soldanella | sea bindweed | Page 13 |
| Campanula glomerata | clustered bellflower | Page 13 |
| Campanula latifolia | giant bellflower | Page 13 |
| Canpanula rotundifolia | harebell | Page 13 |
| Camapanula trachelium | nettle-leaved bellflower | Page 13 |
| Capsella bursa-pastoris | shpherd's-purse | Page 13 |
| Cardamine amara | large bitter-cress | Page 13 |
| Cardamine flexuosa | wavy bitter-cress | Page 13 |
| Cardamine hirsuta | hairy bitter-cress | Page 13 |
| Cardamine pratensis | cuckoo-flower | Page 13 |
| Carduus crispus | welted thistle | Page 13 |
| Carduus nutans | musk thistle | Page 13 |
| Carduus tenuiflorus | slender thistle | Page 13 |
| Carex acutiformis | lesser pond-sedge | Page 15 |
| Carex arenaria | sand sedge | Page 15 |
| Carex binervis | green-ribbed sedge | Page 15 |
| Carex caryophyllea | spring sedge | Page 15 |
| Carex dioica | dioecious sedge | Page 15 |
| Carex distans | distant sedge | Page 15 |
| Carex disticha | brown sedge | Page 15 |
| Carex divulsa | grey sedge | Page 15 |
| Carex echinata | star sedge | Page 15 |
| Carex extensa | long-bracted sedge | Page 15 |
| Carex flacca | glaucous sedge | Page 15 |
| Carex hirta | hairy sedge | Page 15 |
| Carex hostiana | tawny sedge | Page 15 |
| Carex muricata | prickly sedge | Page 15 |
| Carex nigra | common sedge | Page 15 |
| Carex otrubae | false fox-sedge | Page 15 |
| Carex ovalis | oval sedge | Page 15 |
| Carex pallescens | pale sedge | Page 15 |
| Carex panicea | carnation sedge | Page 15 |
| Carex paniculata | greater tussock-sedge | Page 15 |
| Carex pendula | pendulous sedge | Page 17 |
| Carex pilulifera | pill sedge | Page 17 |
| Carex pseudocyperus | cyperus sedge | Page 17 |
| Carex pulicaris | flea sedge | Page 17 |
| Carex remota | remote sedge | Page 17 |
| Carex riparia | greater pond -sedge | Page 17 |
| Carex rostrata | bottle sedge | Page 17 |
| Carex spicata | spiked sedge | Page 17 |
| Carex sylvatica | wood sedge | Page 17 |
| Carex vesicaria | bladder sedge | Page 17 |
| Carex viridula | yellow sedge | Page 17 |
| Carlina vulgaris | carline thistle | Page 17 |
| Carpinus betulus | hornbeam | Page 17 |
| Carprobotus edulis | Hottentot-fig | Page 17 |
| Carum verticillatum | whorled caraway | Page 17 |
| Castanea sativa | sweet chestnut | Page 17 |
| Catabrosia aquatica | whorl-grass | Page 17 |
| Catapodium marinum | sea fern-grass | Page 17 |
| Catapodium rigidum | fern-grass | Page 17 |
| Centaurea nigra | common knapweed | Page 17 |
| Centaurea scabiosa | greater knapweed | Page 19 |
| Centaurium erythraea | common centaury | Page 19 |
| Centranthus ruber | red valerian | Page 19 |
| Cephalanthera damasonium | white helleborine | Page 19 |
| Cerastium arvense | field mouse-ear | Page 19 |
| Cerastium diffusum | dark-green mouse-ear (sea mouse-ear) | Page 19 |
| Cerastium fontanum | common mouse-ear | Page 19 |
| Cerastium glomeratum | sticky mouse-ear | Page 19 |
| Cerastium semidecandrum | little mouse-ear | Page 19 |
| Cerastium tomentosum | snow-in-summer | Page 19 |
| Ceratocapnos claviculata | climbing corydalis | Page 19 |
| Ceratophyllum demersum | rigid hornwort | Page 19 |
| Ceterach officinarum | rustyback | Page 19 |
| Chaenorhinum minus | small toadflax | Page 19 |
| Chaerophyllum temulum | rough chervil | Page 19 |
| Chamaemelum nobile | chamomile | Page 19 |
| Chamerion angustifolium | rosebay willowherb | Page 19 |
| Chelidonium majus | greater celandine | Page 19 |
| Chenopodium album | fat hen | Page 19 |
| Chenopodium bonus-henricus | good king-Henry | Page 19 |
| Chenopodium ficifolium | fig-leaved goosefoot | Page 21 |
| Chenopodium polyspermum | many-seeded goosefoot | Page 21 |
| Chenopodium rubrum | red goosefoot | Page 21 |
| Chrysanthemum segetum | corn marigold | Page 21 |
| Chrysosplenium alternifolium | alternate-leaved golden-saxifrage | Page 21 |
| Chrysosplenium oppositifolium | opposite-leaved golden-saxifrage | Page 21 |
| Cichorium intybus | chicory | Page 21 |
| Circaea lutetiana | enchanter's-nightshade | Page 21 |
| Cirsium acaule | dwarf thistle | Page 21 |
| Cirsium arvense | creeping thistle | Page 21 |
| Cirsium dissectum | meadow thistle | Page 21 |
| Cirsium eriophorum | woolly thistle | Page 21 |
| Cirsium heterophyllum | melancholy thistle | Page 21 |
| Cirsium palustre | marsh thistle | Page 21 |
| Cirsium vulgare | spear thistle | Page 21 |
| Claytonia perfoliata | spring beauty | Page 21 |
| Claytonia sibirica | pink purslane | Page 21 |
| Clematis vitalba | traveller's joy | Page 21 |
| Clinopodium acinos | basil thyme | Page 21 |
| Clinopodium ascendens | common calamint | Page 21 |
| Clinopodium vulgare | wild basil | Page 23 |
| Cochlearia anglica | English scurvygrass | Page 23 |
| Cochlearia danica | Danish scurvygrass | Page 23 |
| Cochlearia officinalis | common scurvygrass | Page 23 |
| Coeloglossum viride | frog orchid | Page 23 |
| Colchicum autumnale | meadow saffron | Page 23 |
| Conium maculatum | hemlock | Page 23 |
| Conopodium majus | pignut | Page 23 |
| Convallaria majalis | lily of the valley | Page 23 |
| Convolvulus arvensis | field bindweed | Page 23 |
| Conyza canadensis | Canadian fleabane | Page 23 |
| Cornus sanguinea | dogwood | Page 23 |
| Cornus suecica | dwarf cornel | Page 23 |
| Coronopus didymus | lesser swine-cress | Page 23 |
| Coronopus squamatus | swine-cress | Page 23 |
| Corylus avellana | hazel | Page 23 |
| Cotoneaster horizontalis | wall cotoneaster | Page 23 |
| Cotoneaster simonsii | Himalayan cotoneaster | Page 23 |
| Crambe maritima | sea kale | Page 23 |
| Crassula helmsii | New Zealand pigmyweed | Page 23 |
| Crataegus laevigata | Midland hawthorn | Page 25 |
| Crataegus monogyna | hawthorn | Page 25 |
| Crepis biennis | rough hawk's-beard | Page 25 |
| Crepis capillaris | smotth hawk's-beard | Page 25 |
| Crepis paludosa | marsh hawk's-beard | Page 25 |
| Crepis vesicaria | beaked hawk's-beard | Page 25 |
| Crithmum maritimum | rock samphire | Page 25 |
| Crocosmia x crocosmiiflora | montbretia | Page 25 |
| Cruciata laevipes | crosswort | Page 25 |
| Cryptogramma crispa | parsley fern | Page 25 |
| Cuscuta epithymum | dodder | Page 25 |
| Cymbalaria muralis | ivy-leaved toadflax | Page 25 |
| Cynoglossum officinale | hound's-tongue | Page 25 |
| Cynosurus cristatus | crested dog's-tail | Page 25 |
| Cystopteris fragilis | brittle bladder-fern | Page 25 |
| Cytisus scoparius | broom | Page 25 |
| Daboecia cantabrica | St Dabeoc's heath | Page 25 |
| Dactylis glomerata | cock's-foot | Page 25 |
| Dactylorhiza fuchsii | common spotted-orchid | Page 25 |
| Dactylorhiza incarnata | early marsh-orchid | Page 25 |
| Dactylorhiza praetermissa | Southern marsh-orchid | Page 27 |
| Dactylorhiza purpurella | Northern marsh-orchid | Page 27 |
| Danthonia decumbens | heath-grass | Page 27 |
| Daphne laureola | spurge-laurel | Page 27 |
| Datura stramonium | thorn-apple | Page 27 |
| Daucus carota | wild carrot | Page 27 |
| Deschampsia cespitosa | tufted hair-grass | Page 27 |
| Deschampsia flexuosa | wavy hair-grass | Page 27 |
| Descurainia sophia | flixweed | Page 27 |
| Digitalis purpurea | foxglove | Page 27 |
| Diphasiastrum alpinum | alpine clubmoss | Page 27 |
| Diplotaxis muralis | annual wall-rocket | Page 27 |
| Diplotaxis tenuifolia | perennial wall-rocket | Page 27 |
| Dipsacus fullonum | wild teasel | Page 27 |
| Dipsacus pilosus | small teasel | Page 27 |
| Doronicum pardalianches | leopard's-bane | Page 27 |
| Drosera anglica | great sundew | Page 27 |
| Drosera intermedia | oblong-leaved sundew | Page 27 |
| Drosera rotundifolia | round-leaved sundew | Page 27 |
| Dryas octopetala | mountain avens | Page 27 |
| Dryopteris affinis | scaly male-fern | Page 29 |
| Dryopteris carthusiana | narrow buckler-fern | Page 29 |
| Dryopteris dilatata | broad buckler-fern | Page 29 |
| Dryopteris filix-mas | common male-fern | Page 29 |
| Echium vulgare | viper's-bugloss | Page 29 |
| Eleocharis multicaulis | many-stalked spike-rush | Page 29 |
| Eleocharis palustris | common spike-rush | Page 29 |
| Eleogitan fluitans | floating club-rush | Page 29 |
| Elodea canadensis | Canadian water-weed | Page 29 |
| Elodea nutallii | Nuttall's water-weed | Page 29 |
| Elymus caninus | bearded couch | Page 29 |
| Elytrigia atherica | sea couch | Page 29 |
| Elytrigia juncea | sand couch | Page 29 |
| Elytrigia repens | common couch | Page 29 |
| Empetrum nigrum | crowberry | Page 29 |
| Epilobium brunnescens | New Zealand willowherb | Page 29 |
| Epilobium ciliatum | American willowherb | Page 29 |
| Epilobium hirsutum | great willowherb | Page 29 |
| Epilobium montanum | broad-leaved willowherb | Page 29 |
| Epilobium obscurum | short-fruited willowherb | Page 29 |
| Epilobium palustre | marsh willowherb | Page 31 |
| Epilobium parviflorum | hoary willowherb | Page 31 |
| Epilobium tetragonum | square-stalked willowherb | Page 31 |
| Epipactis helleborine | broad-leaved helleborine | Page 31 |
| Epipactis palustris | marsh helleborine | Page 31 |
| Epipactis purpurata | violet helleborine | Page 31 |
| Equisetum arvense | field horsetail | Page 31 |
| Equisetum fluviatile | water horstail | Page 31 |
| Equisetum palustre | marsh horsetail | Page 31 |
| Equisetum sylvaticum | wood horsetail | Page 31 |
| Equisetum telmateia | great horsetail | Page 31 |
| Erica cinerea | bell heather | Page 31 |
| Erica tetralix | cross-leaved heath | Page 31 |
| Erigeron acer | blue fleabane | Page 31 |
| Eriophorum angustifolium | common cottongrass | Page 31 |
| Eriphorum vaginatum | hare's-tail cottongrass | Page 31 |
| Erodium cicutarium | common stork's-bill | Page 31 |
| Erodium maritimum | sea stork's-bell | Page 31 |
| Erodium moschatum | musk stork's-bill | Page 31 |
| Erophila verna | common whitlowgrass | Page 31 |
| Eryngium maritimum | sea holly | Page 33 |
| Erysimum cheiranthoides | treacle mustard | Page 33 |
| Erysimum cheiri | wallflower | Page 33 |
| Euonymus europaeus | spindle | Page 33 |
| Eupatorium cannabinum | hemp agrimony | Page 33 |
| Euphorbia amygdaloides | wood spurge | Page 33 |
| Euphorbia exigua | dwarf spurge | Page 33 |
| Euphorbia helioscopia | sun spurge | Page 33 |
| Euphorbia lathyris | caper spurge | Page 33 |
| Euphorbia paralias | sea spurge | Page 33 |
| Euphorbia peplus | petty spurge | Page 33 |
| Euphorbia portlandica | Portland spurge | Page 33 |
| Euphorbia x pseudovirgata | twiggy spurge | Page 33 |
| Euphrasia agg. | eyebright | Page 33 |
| Fagus sylvatica | beech | Page 33 |
| Fallopia convolvulus | black bindweed | Page 33 |
| Fallopia japonica | Japanese knotweed | Page 33 |
| Fallopia sachalinensis | giant knotweed | Page 33 |
| Festuca arundinacia | tall fescue | Page 33 |
| Festuca filiformis | fine-leaved sheep's-fescue | Page 33 |
| Festuca gigantea | giant fescue | Page 35 |
| Festuca ovina | sheep's fescue | Page 35 |
| Festuca pratensis | meadow fescue | Page 35 |
| Festuca rubra | red fescue | Page 35 |
| Festuca vivipara | viviparous fescue | Page 35 |
| Filago minima | small cudweed | Page 35 |
| Filago vulgaris | common cudweed | Page 35 |
| Filipendula ulmaria | meadowsweet | Page 35 |
| Filipendula vulgaris | dropwort | Page 35 |
| Foeniculum vulgare | fennel | Page 35 |
| Fragaria vesca | wild strawberry | Page 35 |
| Frangula alnus | alder buckthorn | Page 35 |
| Fraxinus excelsior | ash | Page 35 |
| Fuchsia magellanica | fuchsia | Page 35 |
| Fumaria muralis | common ramping fumitory | Page 35 |
| Fumaria offinalis | common fumitory | Page 35 |
| Galanthus nivalis | snowdrop | Page 35 |
| Galega officinalis | goat's-rue | Page 35 |
| Galeopsis tetrahit | common hemp-nettle | Page 35 |
| Galinsoga parviflora | gallant soldier | Page 35 |
| Galinsoga quadriradiata | shaggy soldier | Page 37 |
| Galium aparine | cleavers | Page 37 |
| Galium boreale | Northern bedstraw | Page 37 |
| Galium mollugo | hedge bedstraw | Page 37 |
| Galium odoratum | woodruff | Page 37 |
| Galium palustre | common marsh-bedstraw | Page 37 |
| Galium saxatile | heath bedstraw | Page 37 |
| Galium sterneri | limestone bedstraw | Page 37 |
| Galium uliginosum | fen bedstraw | Page 37 |
| Galium verum | lady's bedstraw | Page 37 |
| Genista anglica | petty whin | Page 37 |
| Genista tinctoria | dyer's greenweed | Page 37 |
| Gentianella amarella | autumn gentian | Page 37 |
| Gentianella campestris | field gentian | Page 37 |
| Geranium columbinum | long-stalked crane's-bill | Page 37 |
| Geranium dissectum | cut-leaved crane's-bill | Page 37 |
| Geranium lucidum | shining crane's-bill | Page 37 |
| Geranium molle | dove's-foot crane's-bill | Page 37 |
| Geranium pratense | meadow craen's-bill | Page 37 |
| Geranium pusillum | small-flowered crane's-bill | Page 37 |
| Geranium pyrenaicum | hedgerow crane's-bill | Page 39 |
| Geranium robertianum | herb Robert | Page 39 |
| Geranium rotundifolium | round-leaved crane's-bill | Page 39 |
| Geranium sanguineum | bloody crane's-bill | Page 39 |
| Geranium sylvaticum | wood crane's-bill | Page 39 |
| Geum rivale | water avens | Page 39 |
| Geum urbanum | herb Bennet | Page 39 |
| Glaucium flavum | yellow horned poppy | Page 39 |
| Glaux maritima | sea-milkwort | Page 39 |
| Glechoma hederacea | ground-ivy | Page 39 |
| Glyceria declinata | small sweet-grass | Page 39 |
| Glyceria fluitans | floating sweet-grass | Page 39 |
| Glyceria maxima | reed sweet-grass | Page 39 |
| Glyceria notata | plicate sweet-grass | Page 39 |
| Gnaphalium supinum | dwarf cudweed | Page 39 |
| Gnaphalium sylvaticum | heath cudweed | Page 39 |
| Gnaphalium uliginosum | marsh cudweed | Page 39 |
| Groenlandia densa | opposite-leaved pondweed | Page 39 |
| Gymnadenia conopsea | fragrant orchid | Page 39 |
| Gymnocarpium dryopteris | oak fern | Page 39 |
| Hedera helix | ivy | Page 41 |
| Helianthemum numularium | common rock-rose | Page 41 |
| Helictotrichon pratense | meadow oat-grass | Page 41 |
| Helictotrichon pubescens | downy oat-grass | Page 41 |
| Helleborus foetidus | stinking hellebore | Page 41 |
| Helleborus viridis | green hellebore | Page 41 |
| Heracleum mantegazianum | giant hogweed | Page 41 |
| Heracleum sphondylium | hogweed | Page 41 |
| Hesperis matronalis | dame's violet | Page 41 |
| Hieracium agg. | hawkweed | Page 41 |
| Hippocrepis comosa | horseshoe vetch | Page 41 |
| Hippophae rhamnoides | sea buckthorn | Page 41 |
| Hippuris vulgaris | mare's-tail | Page 41 |
| Hirschfeldia inacana | hoary mustard | Page 41 |
| Holcus lanatus | Yorkshire fog | Page 41 |
| Holcus mollis | creeping soft-grass | Page 41 |
| Honckenya peploides | sea sandwort | Page 41 |
| Hordeum murinum | wall barley | Page 41 |
| Hordeum secalinum | meadow barley | Page 41 |
| Hottonia palustris | water-violet | Page 41 |
| Humulus lupulus | hop | Page 43 |
| Huperzia selago | fir clubmoss | Page 43 |
| Hyacinthoides hispanica x H. non-scripta | hybrid bluebell | Page 43 |
| Hyacinthoides non-scripta | bluebell | Page 43 |
| Hydrocharis morsus-ranae | frogbit | Page 43 |
| Hydrocotyle ranunculoides | floating pennywort | Page 43 |
| Hydrocotyle vulgaris | marsh pennywort | Page 43 |
| Hymenophyllum wilsonii | Wilson's filmy fern | Page 43 |
| Hyocyamus niger | henbane | Page 43 |
| Hypericum androsaemum | tutsan | Page 43 |
| Hypericum calycinum | rose-of-Sharon | Page 43 |
| Hypericum elodes | marsh St John's-wort | Page 43 |
| Hypericum hirsutum | hairy St John's-wort | Page 43 |
| Hypericum humifusum | trailing St John's-wort | Page 43 |
| Hypericum maculatum | imperforate St John's-wort | Page 43 |
| Hypericum montanum | pale St John's-wort | Page 43 |
| Hypericum perforatum | perforate St John's-wort | Page 43 |
| Hypericum pulchrum | slender St John's-wort | Page 43 |
| Hypericum tetrapterum | square-stalked St John's-wort | Page 43 |
| Hypochaeris radicata | cats'-ear | Page 43 |
| Ilex aquifolium | holly | Page 45 |
| Impatiens capensis | orange balsam | Page 45 |
| Impatiens glandulifera | Indian balsam | Page 45 |
| Impatiens parviflora | small balsam | Page 45 |
| Inula conyzae | ploughman's-spikenard | Page 45 |
| Inula crithmoides | golden-samphire | Page 45 |
| Iris foetidissima | stinking iris | Page 45 |
| Iris germanica | bearded iris | Page 45 |
| Iris pseudacorus | yellow iris | Page 45 |
| Isolepsis setacea | bristle club-rsuh | Page 45 |
| Jasione monata | sheep's-bit | Page 45 |
| Juncus acutiflorus | sharp-flowered rush | Page 45 |
| Juncus articulatus | jointed rush | Page 45 |
| Juncus bufonius | toad rush | Page 45 |
| Juncus bulbosus | bulbous rush | Page 45 |
| Juncus conglomeratus | compact rush | Page 45 |
| Juncus effusus | soft rush | Page 45 |
| Juncus gerardii | saltmarsh rush | Page 45 |
| Juncus inflexus | hard rush | Page 45 |
| Juncus maritimus | sea rush | Page 45 |
| Juncus squarrosus | heath rush | Page 47 |
| Juncus subnodulosus | blunt-flowered rush | Page 47 |
| Juncus tenuis | slender rush | Page 47 |
| Juncus trifidus | three-leaved rush | Page 47 |
| Juniperus communis | juniper | Page 47 |
| Kickxia elatine | sharp-flowered fluellen | Page 47 |
| Kickxia spuria | round-leaved fluellen | Page 47 |
| Knautia arvensis | field scabious | Page 47 |
| Koeleria macrantha | crested hair-grass | Page 47 |
| Laburnum anagyroides | laburnum | Page 47 |
| Lactuca serriola | prickly lettuce | Page 47 |
| Lactuca virosa | greater lettuce | Page 47 |
| Lamiastrum galeobdolon | yellow archangel | Page 47 |
| Lamium album | whie dead-nettle | Page 47 |
| Lamium amplexicaule | hen-bit dead-nettle | Page 47 |
| Lamium hybridum | cut-leaved dead-nettle | Page 47 |
| Lamium maculatum | spotted dead-nettle | Page 47 |
| Lamium purpureum | red dead-nettle | Page 47 |
| Lapsana communis | nipplewort | Page 47 |
| Lathraea squamaria | toothwort | Page 47 |
| Lathyrus japonicus | sea pea | Page 49 |
| Lathyrus latifolius | broad-leaved everlasting-pea | Page 49 |
| Lathyrus linifolius | bitter vetch | Page 49 |
| Lathyrus nissolia | grass vetchling | Page 49 |
| Lathyrus pratensis | meadow vetchling | Page 49 |
| Lathyrus sylvestris | narrow-leaved everlasting-pea | Page 49 |
| Lavatera arborea | tree-mallow | Page 49 |
| Legousia hybrida | Venus's-looking -glass | Page 49 |
| Lemna gibba | fat duckweed | Page 49 |
| Lemna minor | common duckweed | Page 49 |
| Lemna minuta | least duckweed | Page 49 |
| Lemna trisulca | ivy-leaved duckweed | Page 49 |
| Leontodon autumnalis | autumnal hawkbit | Page 49 |
| Leontodon hispidus | rough hawkbit | Page 49 |
| Leontodon saxatilis | lesser hawkbit | Page 49 |
| Lepidum campestre | field pepperwort | Page 49 |
| Lepidium draba | hoary cress | Page 49 |
| Lepidium heterophyllum | Smith's pepperwort | Page 49 |
| Lepidium latifolium | dittander | Page 49 |
| Lepidium ruderale | narrow-leaved pepperwort | Page 49 |
| Leucanthemum vulgare | oxeye daisy | Page 51 |
| Leymus arenarius | lyme-grass | Page 51 |
| Ligusticum scoticum | Scottish lovage | Page 51 |
| Ligustrum vulgare | wild privet | Page 51 |
| Limonium binervosum | rock sea-lavender | Page 51 |
| Limonium vulgare | common sea-lavender | Page 51 |
| Linaria purpurea | purple toadflax | Page 51 |
| Linaria repens | pale toadflax | Page 51 |
| Linaria vulgaris | common toadflax | Page 51 |
| Linum bienne | pale flax | Page 51 |
| Linum catharticum | fairy flax | Page 51 |
| Listera cordata | lesser twayblade | Page 51 |
| Listera ovata | common twayblade | Page 51 |
| Lithospermum officinale | common gromwell | Page 51 |
| Littorella uniflora | shoreweed | Page 51 |
| Lobelia dortmanna | water lobelia | Page 51 |
| Lobularia maritima | sweet alison | Page 51 |
| Loiseluria procumbens | trailing azalea | Page 51 |
| Lolium perenne | perennial rye-grass | Page 51 |
| Lonicera periclymenum | honeysuckle | Page 51 |
| Lotus corniculatus | common bird's-foot-trefoil | Page 53 |
| Lotus predunculatus | large bird's-foot-trefoil | Page 53 |
| Lunaria annua | honesty | Page 53 |
| Lupinus x regalis | Russell lupin | Page 53 |
| Luzula campestris | field wood-rush | Page 53 |
| Luzula forsteri | Southern wood-rush | Page 53 |
| Luzula multiflora | heath wood-rush | Page 53 |
| Luzula pilosa | hairy wood-rush | Page 53 |
| Luzula spicata | spiked wood-rush | Page 53 |
| Luzula sylvatica | great wood-rush | Page 53 |
| Lychnis flos-cuculi | ragged Robin | Page 53 |
| Lycium barbarum | Duke of Argyll's teaplant | Page 53 |
| Lycopodium clavatum | stag's-horn clubmoss | Page 53 |
| Lycopus europaeus | gipsywort | Page 53 |
| Lysimachia nemorum | yellow pimpernel | Page 53 |
| Lysimachia nummularia | creeping-Jenny | Page 53 |
| Lysimachia punctata | dotted loosestrife | Page 53 |
| Lysimachia vulgaris | yellow loosestrife | Page 53 |
| Lythrum portula | water purslane | Page 53 |
| Lythrum salicaria | purple loosestrife | Page 53 |
| Mahonia aquifolium | Oregon grape | Page 55 |
| Malus domestica | apple | Page 55 |
| Malus sylvestris | crab apple | Page 55 |
| Malva moschata | musk mallow | Page 55 |
| Malva neglecta | dwarf mallow | Page 55 |
| Malva sylvestris | common mallow | Page 55 |
| Matricaria discoidea | pineapple weed | Page 55 |
| Matricaria recutita | scented mayweed | Page 55 |
| Meconopsis cambrica | Welsh poppy | Page 55 |
| Medicago arabica | spotted medick | Page 55 |
| Medicago lupulina | black medick | Page 55 |
| Medicago sativa | lucerne | Page 55 |
| Melampyrum pratense | common cow-wheat | Page 55 |
| Melica nutans | mountain melick | Page 55 |
| Melica uniflora | wood melick | Page 55 |
| Melilotus albus | white melilot | Page 55 |
| Melilotus altissimus | tall melilot | Page 55 |
| Melilotus officinalis | ribbed melilot | Page 55 |
| Melissa officinalis | balm | Page 55 |
| Mentha aquatica | water mint | Page 55 |
| Mentha arvensis | corn mint | Page 57 |
| Mentha spicata | spear mint | Page 57 |
| Mentha x villosa | apple mint | Page 57 |
| Menyanthes trifoliata | bogbean | Page 57 |
| Mercurialis annua | annual mercury | Page 57 |
| Mercurialis perennis | dog's mercury | Page 57 |
| Meum athamanticum | spignel | Page 57 |
| Milium effusum | wood millet | Page 57 |
| Mimulus guttatus | monkeyflower | Page 57 |
| Mimulus x robertsii | hybrid monkeyflower | Page 57 |
| Minuartia verna | spring sandwort | Page 57 |
| Moehringia trinervia | three-nerved sandwort | Page 57 |
| Molinea caerulea | purple moor-grass | Page 57 |
| Monotropa hypopitys | yellow bird's-nest | Page 57 |
| Montia fontana | blinks | Page 57 |
| Mycelis muralis | wall lettuce | Page 57 |
| Myosotis arvensis | field forget-me-not | Page 57 |
| Myosotis discolor | changing forget-me-not | Page 57 |
| Myosotis laxa | tufted forget-me-not | Page 57 |
| Myosotis ramosissima | early forget-me-not | Page 57 |
| Myosotis scorpiodes | water forget-me-not | Page 59 |
| Myosotis secunda | creeping forget-me-not | Page 59 |
| Myosotis sylvatica | wood forget-me-not | Page 59 |
| Myosoton aquaticum | water chickweed | Page 59 |
| Myrica gale | bog myrtle | Page 59 |
| Myriophyllum alterniflorum | alternate water-milfoil | Page 59 |
| Myriophyllum aquaticum | parrot's-feather | Page 59 |
| Myriophyllum spicatum | spiked water-milfoil | Page 59 |
| Myrrhis odorata | sweet cicely | Page 59 |
| Narcissus pseudonarcissus | daffodil | Page 59 |
| Nardus stricta | mat-grass | Page 59 |
| Narthecium ossifragum | bog asphodel | Page 59 |
| Neottia nidus-avis | bird's-nest orchid | Page 59 |
| Nuphar lutea | yellow water-lily | Page 59 |
| Nymphaea alba | white water-lily | Page 59 |
| Nymphoides peltata | fringed water-lily | Page 59 |
| Odontites vernus | red bartsia | Page 59 |
| Oenanthe aquatica | fine-leaved water-dropwort | Page 59 |
| Oenanthe crocata | hemock water-dropwort | Page 59 |
| Oenanthe lachenalii | parsley water-dropwort | Page 59 |
| Oenothera biennis | common evening-primrose | Page 61 |
| Oenothera glazioviana | large-flowered evening-primrose | Page 61 |
| Onobrychis viciifolia | sainfoin | Page 61 |
| Ononis repens | common restharrow | Page 61 |
| Ononis spinosa | spiny rest-harrow | Page 61 |
| Onopordum acanthium | cotton thistle | Page 61 |
| Ophioglossum vulgatum | adder's-tongue | Page 61 |
| Ophrys apifera | bee orchid | Page 61 |
| Ophrys insectifera | fly orchid | Page 61 |
| Orchis mascula | early purple orchid | Page 61 |
| Orchis morio | green-winged orchid | Page 61 |
| Oreopteris limbosperma | lemon scented fern | Page 61 |
| Origanum vulgare | wild marjoram | Page 61 |
| Ornithogalum angustifolium | star-of-Bethlehem | Page 61 |
| Ornithopus perpusillus | bird's-foot | Page 61 |
| Orobanche elatior | knapweed broomrape | Page 61 |
| Orobanche hederae | ivy broomrape | Page 61 |
| Orobanche minor | common broomrape | Page 61 |
| Osmunda regalis | royal fern | Page 61 |
| Oxalis acetosella | wood-sorrel | Page 61 |
| Oxalis corniculata | procumbent yellow-sorrel | Page 63 |
| Oxalis debilis | large-flowered pink-sorrel | Page 63 |
| Oxyria digyna | mountain sorrel | Page 63 |
| Papaver argemone | prickly poppy | Page 63 |
| Papaver dubium | long-headed poppy | Page 63 |
| Papaver rhoeas | common poppy | Page 63 |
| Papaver somniferum | opium poppy | Page 63 |
| Parapholis strigosa | hard-grass | Page 63 |
| Paretaria judaica | pellitory-of-the-wall | Page 63 |
| Paris quadrifolia | herb Paris | Page 63 |
| Parnassia palustris | grass-of-parnassus | Page 63 |
| Pastinaca sativa | wild parsnip | Page 63 |
| Pedicularis palustris | marsh lousewort | Page 63 |
| Pedicularis sylvatica | lousewort | Page 63 |
| Pentaglottis sempervirens | green alkanet | Page 63 |
| Persicaria amphibia | amphibious bistort | Page 63 |
| Persicaria bistorta | common bistort | Page 63 |
| Persicaria hydropiper | water-pepper | Page 63 |
| Persicaria lapathifolia | pale persicaria | Page 63 |
| Persicaria maculosa | redshank | Page 63 |
| Persicaria vivipara | alpine bistort | Page 65 |
| Petasites fragrans | winter heliotrope | Page 65 |
| Petasites hybridus | butterbur | Page 65 |
| Petroselinum crispum | garden parsley | Page 65 |
| Phalaris arundinacea | reed canary-grass | Page 65 |
| Phalaris canariensis | Canary-grass | Page 65 |
| Phegopteris connectilis | beech fern | Page 65 |
| Phleum arenarium | sand cat's-tail | Page 65 |
| Phleum bertolonii | smaller cats'-tail | Page 65 |
| Phleum pratense | timothy | Page 65 |
| Phragmites australis | common reed | Page 65 |
| Phyllitis scolopendrium | hart's-tongue | Page 65 |
| Picris echiodes | bristly oxtongue | Page 65 |
| Picris heiracioides | hawkweed oxtongue | Page 65 |
| Pilosella aurantiaca | fox-and-cubs | Page 65 |
| Pilosella officinarum | mouse-ear hawkweed | Page 65 |
| Pimpinella major | greater burnet-saxifrage | Page 65 |
| Pimpinella saxifraga | burnet-saxifrage | Page 65 |
| Pinguicula lusitanica | pale butterwort | Page 65 |
| Pinguicula vulgaris | common butterwort | Page 65 |
| Pinus sylvestris | Scots pine | Page 67 |
| Plantago coronopus | buck's-horn plantain | Page 67 |
| Plantago lanceolata | ribwort plantain | Page 67 |
| Plantago major | greater plantain | Page 67 |
| Plantago maritima | sea plantain | Page 67 |
| Plantago media | hoary plantain | Page 67 |
| Plantanthera bifolia | lesser butterfly-orchid | Page 67 |
| Plantanthera chlorantha | greater butterfly orchid | Page 67 |
| Poa angustifolia | narrow-leaved meadow-grass | Page 67 |
| Poa annua | annual meadow-grass | Page 67 |
| Poa compressa | flattened meadow-grass | Page 67 |
| Poa humilis | spreading meadow-grass | Page 67 |
| Poa nemoralis | wood meadow-grass | Page 67 |
| Poa pratensis | smooth meadow-grass | Page 67 |
| Poa trivialis | rough meadow-grass | Page 67 |
| Polygala calcarea | chalk milkwort | Page 67 |
| Polygala serpyllifolia | heath milkwort | Page 67 |
| Polygala vulgaris | common milkwort | Page 67 |
| Polygonatum multiflorum | Solomon's-seal | Page 67 |
| Polygonum arenastrum | equal-leaved knotgrass | Page 67 |
| Polygonum aviculare | knotgrass | Page 69 |
| Polypodium interjectum | intermediate polypody | Page 69 |
| Polypodium vulgare | polypody | Page 69 |
| Polystichum aculeatum | hard shield-fern | Page 69 |
| Polystichum setiferum | soft shield-fern | Page 69 |
| Populus alba | white poplar | Page 69 |
| Populus x canescens | grey poplar | Page 69 |
| Populus tremula | aspen | Page 69 |
| Potamogeton berchtoldii | small pondweed | Page 69 |
| Potamogeton crispus | curled pondweed | Page 69 |
| Potamogeton lucens | shining pondweed | Page 69 |
| Potamogeton natans | broad-leaved pondweed | Page 69 |
| Potamogeton pectinatus | fennel pondweed | Page 69 |
| Potamogeton perfoliatus | perfoliate pondweed | Page 69 |
| Potamogeton polygonifolius | bog pondweed | Page 69 |
| Potentilla anglica | trailing tormentil | Page 69 |
| Potentilla anserina | silverweed | Page 69 |
| Potentilla argentea | hoary cinquefoil | Page 69 |
| Potentilla erecta | tormentil | Page 69 |
| Potentilla palustris | marsh cinquefoil | Page 69 |
| Potentilla reptans | creeping cinquefoil | Page 71 |
| Potentilla sterilis | barren strawberry | Page 71 |
| Primula farinosa | bird's-eye primrose | Page 71 |
| Primula veris | cowslip | Page 71 |
| Primula vulgaris | primrose | Page 71 |
| Prunella vulgaris | selfheal | Page 71 |
| Prunus avium | wild cherry | Page 71 |
| Prunus cerasifera | cherry plum | Page 71 |
| Prunus domestica | wild plum | Page 71 |
| Prunus laurocerasus | cherry laurel | Page 71 |
| Prunus padus | bird cherry | Page 71 |
| Prunus spinosa | blackthorn | Page 71 |
| Pseudofumaria lutea | yellow corydalis | Page 71 |
| Pteridum aquilinum | bracken | Page 71 |
| Puccinellia distans | reflexed saltmarsh-grass | Page 71 |
| Puccinellia maritima | common saltmarsh-grass | Page 71 |
| Pulicaria dysenterica | common fleabane | Page 71 |
| Pulmonaria officinalis | lungwort | Page 71 |
| Pulsatilla vulgaris | pasqueflower | Page 71 |
| Pyrola minor | common wintergreen | Page 71 |
| Quercus cerris | Turkey oak | Page 73 |
| Quercus ilex | evergreen oak | Page 73 |
| Quercus petraea | sessile oak | Page 73 |
| Quercus robur | pedunculate oak | Page 73 |
| Radiola linoides | allseed | Page 73 |
| Ranunculus acris | meadow buttercup | Page 73 |
| Ranunculus aquatilis | common water-crowfoot | Page 73 |
| Ranunculus auricomus | Goldilocks buttercup | Page 73 |
| Ranunculus bulbosus | bulbous buttercup | Page 73 |
| Ranunculus ficaria | lesser celandine | Page 73 |
| Ranunculus flammula | lesser spearwort | Page 73 |
| Ranunculus hederaceus | ivy-leaved crowfoot | Page 73 |
| Ranunculus lingua | greater spearwort | Page 73 |
| Ranunculus omiophyllus | round-leaved crowfoot | Page 73 |
| Ranunculus peltatus | pond water-crowfoot | Page 73 |
| Ranunculus penicillatus | stream water-crowfoot | Page 73 |
| Ranunculus repens | creeping buttercup | Page 73 |
| Ranunculus sardous | hairy buttercup | Page 73 |
| Ranunculus scleratus | celery-leaved buttercup | Page 73 |
| Ranunculus tricophyllus | thread-leaved water-crowfoot | Page 73 |
| Raphanus raphanistrum | wild radish | Page 75 |
| Reseda lutea | wild mignonette | Page 75 |
| Reseda luteola | weld | Page 75 |
| Rhamnus cathartica | buckthorn | Page 75 |
| Rhinanthus minor | yellow-rattle | Page 75 |
| Rhododendron ponticum | rhododendron | Page 75 |
| Rhynchospora alba | white beak-sedge | Page 75 |
| Ribes nigrum | black currant | Page 75 |
| Ribes rubrum | red currant | Page 75 |
| Ribes uva-cripsa | gooseberry | Page 75 |
| Rorippa amphibia | greater yellow-cress | Page 75 |
| Rorippa microphylla | narrow-fruited water-cress | Page 75 |
| Rorippa nasturtium-aquaticum | water-cress | Page 75 |
| Rorippa palustris | marsh yellow-cress | Page 75 |
| Rorippa sylvestris | creeping yellow-cress | Page 75 |
| Rosa arvensis | field rose | Page 75 |
| Rosa canina | dog rose | Page 75 |
| Rosa pimpinellifolia | burnet rose | Page 75 |
| Rosa rubiginosa | sweet briar | Page 75 |
| Rosa sherardii | Sherard's downy-rose | Page 75 |
| Rubia peregrina | wild madder | Page 77 |
| Rubus caesius | dewberry | Page 77 |
| Rubus chamaemorus | cloudberry | Page 77 |
| Rubus fruticosus agg. | bramble | Page 77 |
| Rubus idaeus | raspberry | Page 77 |
| Rubus saxatilis | stone bramble | Page 77 |
| Rumex acetosa | common sorrel | Page 77 |
| Rumex acetosella | sheep's sorrel | Page 77 |
| Rumex conglomeratus | clustered dock | Page 77 |
| Rumex crispus | curled dock | Page 77 |
| Rumex hydrolapathum | water dock | Page 77 |
| Rumex longifolius | Northern dock | Page 77 |
| Rumex obtusifolius | broad-leaved dock | Page 77 |
| Rumex pulcher | fiddle dock | Page 77 |
| Rumex sanguineus | wood dock | Page 77 |
| Ruscus aculeatus | butcher's-broom | Page 77 |
| Sagina apetala | annual pearlwort | Page 77 |
| Sagina nodosa | knotted pearlwort | Page 77 |
| Sagina procumbens | procumbent pearlwort | Page 77 |
| Sagina subulata | heath pearlwort | Page 77 |
| Sagittaria sagittifolia | arrowhead | Page 79 |
| Salicornia europaea | common glasswort | Page 79 |
| Salicornia ramosissima | purple glasswort | Page 79 |
| Salix alba | white willow | Page 79 |
| Salix aurita | eared willow | Page 79 |
| Salix caprea | goat willow | Page 79 |
| Salix cinerea | grey willow | Page 79 |
| Salix fragilis | crack willow | Page 79 |
| Salix herbacea | dwarf willow | Page 79 |
| Salix pentandra | bay willow | Page 79 |
| Salix purpurea | purple willow | Page 79 |
| Salix repens | creeping willow | Page 79 |
| Salix triandra | almond willow | Page 79 |
| Salix viminalis | osier | Page 79 |
| Salsola kali | saltwort | Page 79 |
| Salvia verbanica | wild clary | Page 79 |
| Sambucus ebulus | dwarf elder | Page 79 |
| Sambucus nigra | elder | Page 79 |
| Sambucus racemosa | red-berried elder | Page 79 |
| Samolus valerandi | brookweed | Page 79 |
| Sanguisorba minor | salad burnet | Page 81 |
| Sanguisorba officinalis | great burnet | Page 81 |
| Sanicula europaea | sanicle | Page 81 |
| Saponaria officinalis | soapwort | Page 81 |
| Saussauria alpina | alpine saw-wort | Page 81 |
| Saxifraga aizoides | yellow saxifrage | Page 81 |
| Saxifraga granulata | meadow saxifrage | Page 81 |
| Saxifraga hypnoides | mossy saxifrage | Page 81 |
| Saxifraga oppositifolia | purple saxifrage | Page 81 |
| Saxifraga stellaris | starry saxifrage | Page 81 |
| Saxifraga tridactylites | rue-leaved saxifrage | Page 81 |
| Scabiosa columbaria | small scabious | Page 81 |
| Schoenoplectus lacustris | common club-rush | Page 81 |
| Schoenoplectus tabernaemontani | grey club-rush | Page 81 |
| Schoenus nigricans | black bog-rush | Page 81 |
| Scilla autumnalis | autumn squill | Page 81 |
| Scilla verna | Spring squill | Page 81 |
| Scirpus sylvaticus | wood club-rush | Page 81 |
| Scleranthus annuus | annual knawel | Page 81 |
| Scrophularia auriculata | water figwort | Page 81 |
| Scrophularia nodosa | common figwort | Page 83 |
| Scutellaria galericulata | skullcap | Page 83 |
| Scutellaria minor | lesser skullcap | Page 83 |
| Sedum acre | biting stonecrop | Page 83 |
| Sedum album | white stonecrop | Page 83 |
| Sedum anglicum | English stonecrop | Page 83 |
| Sedum forsterianum | rock stonecrop | Page 83 |
| Sedum rosea | roseroot | Page 83 |
| Sedum rupestre | reflexed stonecrop | Page 83 |
| Sedum telephium | orpine | Page 83 |
| Selaginella selaginoides | lesser clubmoss | Page 83 |
| Senecio aquaticus | marsh ragwort | Page 83 |
| Senecio erucifolius | hoary ragwort | Page 83 |
| Senecio jacobaea | common ragwort | Page 83 |
| Senecio squalidus | Oxford ragwort | Page 83 |
| Senecio sylvaticus | heath groundsel | Page 83 |
| Senecio viscosus | sticky groundsel | Page 83 |
| Senecio vulgaris | groundsel | Page 83 |
| Seriphidium maritimum | sea wormwood | Page 83 |
| Serratula tinctoria | saw-wort | Page 83 |
| Sesleria caerulea | blue moor-grass | Page 85 |
| Sherardia arvensis | field madder | Page 85 |
| Silaum silaus | pepper-saxifrage | Page 85 |
| Silene acaulis | moss campion | Page 85 |
| Silene dioica | red campion | Page 85 |
| Silene latifolia | white campion | Page 85 |
| Silene noctiflora | night-flowering catchfly | Page 85 |
| Silene uniflora | sea campion | Page 85 |
| Silene vulgaris | bladder campion | Page 85 |
| Sinapis alba | white mustard | Page 85 |
| Sinapis arvensis | charlock | Page 85 |
| Sison amomum | stone parsley | Page 85 |
| Sisymbrium altissimum | tall rocket | Page 85 |
| Sisymbrium officinale | hedge mustard | Page 85 |
| Sisymbrium orientale | Eastern rocket | Page 85 |
| Smyrnium olusatrum | alexanders | Page 85 |
| Solanum dulcamara | bittersweet | Page 85 |
| Solanum nigrum | black nightshade | Page 85 |
| Soleirolia soleirolii | mind-your-own-business | Page 85 |
| Solidago canadensis | Canadian goldenrod | Page 85 |
| Solidago gigantea | early goldenrod | Page 87 |
| Solidago virgurea | goldenrod | Page 87 |
| Sonchus arvensis | perennial sow-thistle | Page 87 |
| Sonchus asper | prickly sow-thistle | Page 87 |
| Sonchus oleraceus | smooth sow-thistle | Page 87 |
| Sorbus aria | whitebeam | Page 87 |
| Sorbus acuparia | rowan | Page 87 |
| Sorbus torminalis | wild service-tree | Page 87 |
| Sparganium angustifolium | floating bur-reed | Page 87 |
| Sparganium emersum | unbranched bur-reed | Page 87 |
| Sparganium erectum | branched bur-reed | Page 87 |
| Spartina anglica | common cord-grass | Page 87 |
| Spartium junceum | Spanish broom | Page 87 |
| Spergula arvensis | corn spurrey | Page 87 |
| Spergularia marina | lesser sea-spurrey | Page 87 |
| Spergularia media | greater sea-spurrey | Page 87 |
| Spergularia rubra | sand spurrey | Page 87 |
| Spergularia rupicola | rock sea-spurrey | Page 87 |
| Spiranthes spiralis | autumn lady's-tresses | Page 87 |
| Spirodela polyrhiza | greater duckweed | Page 87 |
| Stachys arvensis | field woundwort | Page 89 |
| Stachys officinalis | betony | Page 89 |
| Stachys palustris | marsh woundwort | Page 89 |
| Stachys sylvatica | hedge woundwort | Page 89 |
| Stellaria graminea | lesser stitchwort | Page 89 |
| Stellaria holostea | greater stitchwort | Page 89 |
| Stellaria media | common chickweed | Page 89 |
| Stellaria nemorum | wood stitchwort | Page 89 |
| Stellaria pallida | lesser chickweed | Page 89 |
| Stellaria uliginosa | bog stitchwort | Page 89 |
| Suada maritima | annual sea-blite | Page 89 |
| Succisa pratensis | devil's-bit scabious | Page 89 |
| Symphoricarpos albus | snowberry | Page 89 |
| Symphytum officinale | common comfrey | Page 89 |
| Symphytum orientale | white comfrey | Page 89 |
| Symphytum tuberosum | tuberous comfrey | Page 89 |
| Symphytum x uplandicum | Russian comfrey | Page 89 |
| Tamus communis | black bryony | Page 89 |
| Tancetum parthenium | feverfew | Page 89 |
| Tanacetum vulgare | tansy | Page 89 |
| Taraxacum agg. | dandelion | Page 91 |
| Taxus baccata | yew | Page 91 |
| Teesdalia nudicaulis | shepherd's cress | Page 91 |
| Teucrium scorodonia | wood sage | Page 91 |
| Thalictrum alpinum | alpine meadow-rue | Page 91 |
| Thalictrum flavum | common meadow-rue | Page 91 |
| Thalictrum minus | lesser meadow-rue | Page 91 |
| Thlaspi arvense | field penny-cress | Page 91 |
| Thymus polytrichus | wild thyme | Page 91 |
| Thymus pulegioides | large thyme | Page 91 |
| Tilia cordata | small-leaved lime | Page 91 |
| Tilia platyphyllos | large-leaved lime | Page 91 |
| Tilia x europaea | lime | Page 91 |
| Torilis japonica | upright hedge-parsley | Page 91 |
| Torilis nodosa | knotted bur-parsley | Page 91 |
| Tragopogon pratensis | goat's-beard | Page 91 |
| Trichophorum cespitosum | deergrass | Page 91 |
| Trientalis europaea | chickweed wintergreen | Page 91 |
| Trifolium arvense | hare's-foot clover | Page 91 |
| Trifolium campestre | hop trefoil | Page 91 |
| Trifolium dubium | lesser trefoil | Page 93 |
| Trifolium fragiferum | strawberry clover | Page 93 |
| Trifolium hybridum | alsike clover | Page 93 |
| Trifolium medium | zigzag clover | Page 93 |
| Trifolium macranthum | slender trefoil | Page 93 |
| Trifolium ornithopodioides | bird's-foot clover | Page 93 |
| Trifolium pratense | red clover | Page 93 |
| Trifolium repens | white clover | Page 93 |
| Trifolium scabrum | rough clover | Page 93 |
| Trifolium striatum | knotted clover | Page 93 |
| Trifolium subterraneum | subterranean clover | Page 93 |
| Triglochin maritimum | sea arrowgrass | Page 93 |
| Triglochin palustre | marsh arrowgrass | Page 93 |
| Tripleurospermum inodorum | scentless mayweed | Page 93 |
| Tripleurospermum maritimum | sea mayweed | Page 93 |
| Trisetum flavescens | yellow oat-grass | Page 93 |
| Trollius europaeus | globe-flower | Page 93 |
| Tussilago farfara | colt's-foot | Page 93 |
| Typha angustifolia | lesser bulrush | Page 93 |
| Typha latifolia | bulrush | Page 93 |
| Ulex europaeus | gorse | Page 95 |
| Ulex gallii | Western gorse | Page 95 |
| Ulex minor | dwarf gorse | Page 95 |
| Ulmus glabra | wych elm | Page 95 |
| Ulmus minor | small-leaved elm | Page 95 |
| Ulmus procera | English elm | Page 95 |
| Umbilicus rupestris | navelwort | Page 95 |
| Urtica dioica | common nettle | Page 95 |
| Urtica urens | small nettle | Page 95 |
| Vaccinium myrtillus | bilberry | Page 95 |
| Vaccinium oxycoccos | cranberry | Page 95 |
| Vaccinium vitis-idaea | cowberry | Page 95 |
| Valeriana dioica | marsh valerian | Page 95 |
| Valeriana officinalis | common valerian | Page 95 |
| Valerianella carinata | keeled-fruited cornsalad | Page 95 |
| Valerianella dentata | narrow-fruited cornsalad | Page 95 |
| Valerianella locusta | common cornsalad | Page 95 |
| Verbascum nigrum | dark mullein | Page 95 |
| Verbascum thapsus | great mullein | Page 95 |
| Verbena officinalis | vervain | Page 95 |
| Veronica agrestis | green field-speedwell | Page 97 |
| Veronica anagallis-aquatica | blue water-speedwell | Page 97 |
| Veronica arvensis | wall speedwell | Page 97 |
| Veronica beccabunga | brooklime | Page 97 |
| Veronica catenata | pink water-speedwell | Page 97 |
| Veronica chamaedrys | germander speedwell | Page 97 |
| Veronica filiformis | slender speedwell | Page 97 |
| Veronica hederifolia | ivy-leaved speedwell | Page 97 |
| Veronica montana | wood speedwell | Page 97 |
| Veronica officinalis | heath speedwell | Page 97 |
| Veronica persica | common field-speedwell | Page 97 |
| Veronica polita | grey field-speedwell | Page 97 |
| Veronica scutellata | marsh speedwell | Page 97 |
| Veronica serpyllifolia | thyme-leaved speedwell | Page 97 |
| Viburnum lantana | wayfaring tree | Page 97 |
| Viburnum opulus | guelder-rose | Page 97 |
| Vicia cracca | tufted vetch | Page 97 |
| Vicia hirsuta | hairy tare | Page 97 |
| Vicia lathyroides | Spring vetch | Page 97 |
| Vicia sativa | common vetch | Page 97 |
| Vicia sepium | bush vetch | Page 99 |
| Vicia sylvatica | wood vetch | Page 99 |
| Vicia tetrasperma | smooth tare | Page 99 |
| Vinca major | greater periwinkle | Page 99 |
| Vinca minor | lesser periwinkle | Page 99 |
| Viola arvensis | field pansy | Page 99 |
| Viola canina | heath dog-violet | Page 99 |
| Viola hirta | hairy violet | Page 99 |
| Viola lutea | mountain pansy | Page 99 |
| Viola odorata | sweet violet | Page 99 |
| Viola palustris | marsh violet | Page 99 |
| Viola reichenbachiana | early dog-violet | Page 99 |
| Viola riviniana | common dog-violet | Page 99 |
| Viola tricolor | wild pansy | Page 99 |
| Viola x wittrokianna | garden pansy | Page 99 |
| Viscum album | mistletoe | Page 99 |
| Vulpia bromoides | squirrel-tail fescue | Page 99 |
| Vulpia myuros | rat's-tail fescue | Page 99 |
| Wahlenbergia hederacea | ivy-leaved bellflower | Page 99 |
| Zannichellia palustris | horned pondweed | Page 99 |