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
Goodyera repens
Creeping Lady's-tresses
Gymnadenia borealis
Heath Fragrant-orchid
Gymnadenia conopsea
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
Helleborus viridis
Green Hellebore
Helosciadium inundatum
Lesser Marshwort
Helosciadium nodiflorum
Fool's-water-cress
Herminium monorchis
Musk Orchid
Hesperis matronalis
Dame's-violet
Himantoglossum hircinum
Lizard Orchid