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 sanguineum
Bloody Crane's-bill
Geum rivale
Water Avens
Geum x intermedium
Hybrid Avens
Glechoma hederacea
Ground-ivy
Glyceria fluitans
Floating Sweet-grass
Guizotia abyssinica
Niger
Gymnadenia borealis
Heath Fragrant Orchid
Gymnadenia conopsea
Chalk Fragrant-orchid
Gymnocarpium dryopteris
Oak Fern
Hammarbya paludosa
Bog Orchid
Helianthemum oelandicum
Hoary Rock-rose
Helichrysum arenarium
Helichrysum italicum
Curry-plant
Helleborus viridis
Green Hellebore
Helminthotheca echioides
Bristly Oxtongue
Helosciadium inundatum
Lesser Marshwort
Heracleum mantegazzianum
Giant Hogweed
Heracleum sphondylium
Hogweed
Hieracium anglicum agg.
Hawkweed (anglicum agg.)