Fumaria bastardii
Tall Ramping-fumitory
Fumaria capreolata
White Ramping-fumitory
Fumaria muralis
Common Ramping-fumitory
Gagea bohemica
Early Star-of-Bethlehem
Gagea lutea
Yellow Star-of-Bethlehem
Gagea serotina
Snowdon Lily
Galatella linosyris
Goldilocks Aster
Galeopsis bifida
Bifid Hemp-nettle
Galeopsis tetrahit sens str
Common Hemp-nettle
Galium album
Hedge Bedstraw
Galium aparine
Cleavers
Galium odoratum
Woodruff
Galium palustre
Marsh-bedstraw
Galium saxatile
Heath Bedstraw
Galium sterneri
Limestone Bedstraw
Galium uliginosum
Fen Bedstraw
Galium verum
Lady's Bedstraw
Genista anglica
Petty Whin
Genista pilosa
Hairy Greenweed
Genista tinctoria
Dyer's Greenweed
Gentiana verna
Spring Gentian
Gentianella amarella
Autumn Gentian
Gentianella campestris
Field Gentian
Gentianella germanica
Chiltern Gentian
Geranium columbinum
Long-stalked Crane's-bill
Geranium lucidum
Shining Crane's-bill
Geranium molle
Dove's-foot Crane's-bill
Geranium pratense
Meadow Crane's-bill
Geranium purpureum
Little-Robin
Geranium pusillum
Small-flowered Crane's-bill
Geranium robertianum
Herb-Robert
Geranium sanguineum
Bloody Crane's-bill
Geranium sylvaticum
Wood Crane's-bill
Geum rivale
Water Avens
Geum urbanum
Wood Avens
Geum x intermedium
Hybrid Avens
Gladiolus illyricus
Wild Gladiolus
Glaucium flavum
Yellow Horned-poppy
Glechoma hederacea
Ground-ivy
Glyceria declinata
Small Sweet-grass
Glyceria fluitans
Floating Sweet-grass
Gnaphalium uliginosum
Marsh Cudweed
Goodyera repens
Creeping Lady's-tresses
Gymnadenia borealis
Heath Fragrant Orchid
Gymnadenia conopsea
Fragrant Orchid
Gymnadenia densiflora
Marsh Fragrant-orchid
Gymnocarpium dryopteris
Oak Fern
Gymnocarpium robertianum
Limestone Fern
Hammarbya paludosa
Bog Orchid
Hedera helix sens lat
Ivy
Hedera hibernica
Atlantic Ivy
Helianthemum apenninum
White Rock-rose
Helianthemum nummularium
Common Rock-rose
Helianthemum oelandicum
Hoary Rock-rose
Helleborus foetidus
Stinking Hellebore
Helosciadium nodiflorum
Fool's-water-cress
Heracleum sphondylium
Hogweed
Herminium monorchis
Musk Orchid
Hieracium sabaudum
Autumn Hawkweed
Hieracium stenopholidium
Western Hawkweed
Hieracium subbritannicum
Himantoglossum hircinum
Lizard Orchid
Hippocrepis comosa
Horseshoe Vetch
Hippophae rhamnoides
Sea-buckthorn
Hippuris vulgaris
Mare's-tail
Holcus lanatus
Yorkshire-fog
Honckenya peploides
Sea Sandwort
Hordeum secalinum
Meadow Barley
Hornungia petraea
Hutchinsia
Hottonia palustris
Water-violet