Cochlearia officinalis agg.
Scurvygrass
Coeloglossum viride
Frog Orchid
Colchicum autumnale
Meadow Saffron
Comarum palustre
Marsh Cinquefoil
Conopodium majus
Pignut
Convallaria majalis
Lily-of-the-valley
Convolvulus arvensis
Field Bindweed
Cornus sanguinea
Dogwood
Corrigiola litoralis
Strapwort
Corylus avellana
Hazel
Crambe maritima
Sea-kale
Crataegus laevigata
Midland Hawthorn
Crataegus monogyna
Hawthorn
Crepis biennis
Rough Hawk's-beard
Crepis capillaris
Smooth Hawk's-beard
Crithmum maritimum
Rock Samphire
Cruciata laevipes
Crosswort
Cryptogramma crispa
Parsley Fern
Cuscuta epithymum
Dodder
Cuscuta europaea
Greater Dodder
Cynoglossum officinale
Hound's-tongue
Cynosurus cristatus
Crested Dog's-tail
Cyperus fuscus
Brown Galingale
Cypripedium calceolus
Lady's-slipper
Cystopteris fragilis
Brittle Bladder-fern
Cytisus scoparius
Broom
Daboecia cantabrica
St Dabeoc's Heath
Daboecia x scotica
Dactylis glomerata
Cock's-foot
Dactylorhiza
Dactylorhiza fuchsii
Common Spotted-orchid
Dactylorhiza incarnata
Early Marsh-orchid
Dactylorhiza kerryensis
Irish Marsh-orchid
Dactylorhiza maculata
Heath Spotted-orchid
Dactylorhiza praetermissa
Southern Marsh-orchid
Dactylorhiza purpurella
Northern Marsh-orchid
Dactylorhiza traunsteinerioides
Narrow-leaved Marsh-orchid
Dactylorhiza x formosa
Dactylorhiza x grandis
Damasonium alisma
Starfruit
Danthonia decumbens
Heath-grass
Daphne laureola
Spurge-laurel
Daucus carota
Carrot
Deschampsia cespitosa
Tufted Hair-grass
Deschampsia setacea
Bog Hair-grass
Dianthus armeria
Deptford Pink
Dianthus deltoides
Maiden Pink
Dianthus gratianopolitanus
Cheddar Pink
Digitalis purpurea
Foxglove
Diphasiastrum alpinum
Alpine Clubmoss
Dipsacus pilosus
Small Teasel
Draba aizoides
Yellow Whitlowgrass
Draba incana
Hoary Whitlowgrass
Drosera anglica
Great Sundew
Drosera intermedia
Oblong-leaved Sundew
Drosera rotundifolia
Round-leaved Sundew
Dryas octopetala
Mountain Avens
Dryopteris aemula
Hay-scented Buckler-fern
Dryopteris affinis
Scaly Male-fern
Dryopteris carthusiana
Narrow Buckler-fern
Dryopteris dilatata
Broad Buckler-fern
Dryopteris filix-mas
Male-fern
Dryopteris oreades
Mountain Male-fern
Dryopteris submontana
Rigid Buckler-fern
Echium vulgare
Viper's-bugloss
Elatine hexandra
Six-stamened Waterwort
Eleocharis acicularis
Needle Spike-rush
Eleocharis multicaulis
Many-stalked Spike-rush
Eleocharis palustris
Common Spike-rush
Eleocharis quinqueflora
Few-flowered Spike-rush