Carex pendula
Pendulous Sedge
Carex pilulifera
Pill Sedge
Carex riparia
Greater Pond-sedge
Carex sp
Sedge
Carex strigosa
Thin-spiked Wood-sedge
Carex sylvatica
Wood-sedge
Carex vesicaria
Bladder-sedge
Carex x gaudiniana
Carex x prolixa
A Hybrid Sedge
Carlina vulgaris
Carline Thistle
Carpinus betulus
Hornbeam
Cassia fistula
Golden Shower Tree
Castanea sativa
Sweet Chestnut
Casuarina equisetifolia
Coastal She-oak
Cedrus deodara
Deodar
Cedrus libani
Cedar-of-Lebanon
Cenchrus setosus
Mission Grass
Centaurea cyanus
Cornflower
Centaurea debeauxii
Slender Knapweed
Centaurea nigra
Common Knapweed
Centaurea scabiosa
Greater Knapweed
Centaurium erythraea
Common Centaury
Centaurium portense
Perennial Centaury
Centranthus ruber
Red Valerian
Cephalanthera damasonium
White Helleborine
Cephalanthera rubra
Red Helleborine
Cerastium semidecandrum
Little Mouse-ear
Cerastium tomentosum
Snow-in-summer
Ceratocapnos claviculata
Climbing Corydalis
Ceratostigma plumbaginoides
Plumbago
Chaenorhinum minus
Small Toadflax
Chaenorhinum origanifolium
Malling Toadflax
Chaerophyllum temulum
Rough Chervil
Chamaecyparis lawsoniana
Lawson's Cypress
Chamaecyparis obtusa
Japanese Cypress
Chamaenerion angustifolium
Chelidonium majus
Greater Celandine
Chenopodium album
Fat-hen
Chenopodium vulvaria
Stinking Goosefoot
Chrysosplenium alternifolium
Alternate-leaved Golden-saxifrage
Chrysosplenium oppositifolium
Opposite-leaved Golden-saxifrage
Cichorium intybus
Chicory
Circaea alpina
Alpine Enchanter's-nightshade
Circaea lutetiana
Enchanter's-nightshade
Circaea x intermedia
Upland Enchanter's-nightshade
Cirsium acaule
Dwarf Thistle
Cirsium arvense
Creeping Thistle
Cirsium dissectum
Meadow Thistle
Cirsium heterophyllum
Melancholy Thistle
Cirsium oleraceum
Cabbage Thistle
Cirsium palustre
Marsh Thistle
Cirsium vulgare
Spear Thistle
Cirsium x celakovskianum
Cladium mariscus
Great Fen-sedge
Cladonia fimbriata
Claytonia perfoliata
Springbeauty
Claytonia sibirica
Pink Purslane
Clematis vitalba
Traveller's-joy
Clinopodium acinos
Basil Thyme
Clinopodium vulgare
Wild Basil
Cochlearia danica
Danish Scurvygrass
Cochlearia officinalis
Common Scurvygrass
Cochlearia officinalis agg.
Scurvygrass
Coeloglossum viride
Frog Orchid
Colchicum
Colchicum autumnale
Meadow Saffron
Colobanthus quitensis
Antarctic pearlwort
Comarum palustre
Marsh Cinquefoil
Conopodium majus
Pignut
Convallaria majalis
Lily-of-the-valley