Fumaria muralis
Common Ramping-fumitory
Fumaria officinalis
Common Fumitory
Furcraea foetida
Giant Cabuya
Gagea bohemica
Early Star-of-Bethlehem
Gagea serotina
Snowdon Lily
Galanthus nivalis
Snowdrop
Galatella linosyris
Goldilocks Aster
Galeopsis tetrahit sens str
Common Hemp-nettle
Galium album
Hedge Bedstraw
Galium odoratum
Woodruff
Galium palustre
Marsh-bedstraw
Galium saxatile
Heath Bedstraw
Galium sterneri
Limestone Bedstraw
Galium verum
Lady's Bedstraw
Ganoderma sp.
Artist's Conk
Gaultheria mucronata
Prickly Heath
Genista anglica
Petty Whin
Genista pilosa
Hairy Greenweed
Genista tinctoria
Dyer's Greenweed
Gentiana alpina
Alpine Gentian
Gentiana verna
Spring Gentian
Gentianella amarella
Autumn Gentian
Gentianella campestris
Field Gentian
Gentianella germanica
Chiltern Gentian
Geranium columbinum
Long-stalked Crane's-bill
Geranium dissectum
Cut-leaved Crane's-bill
Geranium lucidum
Shining Crane's-bill
Geranium pratense
Meadow Crane's-bill
Geranium robertianum
Herb-Robert
Geranium sanguineum
Bloody Crane's-bill
Geum rivale
Water Avens
Glaucium flavum
Yellow Horned-poppy
Glebionis segetum
Corn Marigold
Gnaphalium uliginosum
Marsh Cudweed
Gomphrena serrata
Prostrate Globe Amaranth
Goodyera repens
Creeping Lady's-tresses
Grimmia pulvinata
Grey-cushioned Grimmia
Gunnera tinctoria
Giant-rhubarb
Gymnadenia borealis
Heath Fragrant-orchid
Gymnadenia conopsea
Fragrant Orchid
Gymnocarpium dryopteris
Oak Fern
Gymnocarpium robertianum
Limestone Fern
Hammarbya paludosa
Bog Orchid
Hedera hibernica
Atlantic Ivy
Helianthemum apenninum
White Rock-rose
Helianthemum nummularium
Common Rock-rose
Helianthemum oelandicum
Hoary Rock-rose
Helleborus foetidus
Stinking Hellebore
Helleborus viridis
Green Hellebore
Helminthotheca echioides
Bristly Oxtongue
Helosciadium inundatum
Lesser Marshwort
Helosciadium nodiflorum
Fool's-water-cress
Heracleum mantegazzianum
Giant Hogweed
Heracleum sphondylium
Hogweed
Hesperis matronalis
Dame's-violet
Hevea brasiliensis
Pará Rubber Tree
Hibiscus tiliaceus
Sea Hibiscus
Hieracium argillaceum
Southern Hawkweed
Hieracium attenboroughianum
Attenborough’s Hawkweed
Hieracium breconense
Brecon Hawkweed
Hieracium clivicola
Hill Hawkweed
Hieracium daedalolepioides
Petite-leaved Hawkweed
Hieracium discophyllum
Disc-leaved Hawkweed
Hieracium hypochaeroides
Cat's-ear Hawkweed
Hieracium inspissatum
Crass-leaved Hawkweed
Hieracium neocoracinum
Craig Gleisiad Hawkweed
Hieracium repandulare
Repand-leaved Hawkweed
Hieracium reticulatiforme
Reticulate-leaved Hawkweed
Hieracium sabaudum
Autumn Hawkweed
Hieracium sect. Hieracioides