Gaultheria mucronata
Prickly Heath
Gaultheria shallon
Shallon
Geastrum fimbriatum
Sessile Earthstar
Geranium robertianum
Herb-Robert
Glyceria sp.
Gnaphalium uliginosum
Marsh Cudweed
Griselinia littoralis
New Zealand Broadleaf
Gunnera tinctoria
Giant-rhubarb
Hedera hibernica
Atlantic Ivy
Heracleum sphondylium
Hogweed
Honckenya peploides
Sea Sandwort
Hymenophyllum spp.
Filmy-ferns
Hymenophyllum tunbrigense
Tunbridge Filmy-fern
Hymenophyllum wilsonii
Wilson's Filmy-fern
Hypericum androsaemum
Tutsan
Hypericum pulchrum
Slender St John's-wort
Hypholoma fasciculare
Sulphur Tuft
Hypnum cupressiforme
Hypochaeris radicata
Cat's-ear
Ilex aquifolium
Holly
Impatiens glandulifera
Indian Balsam
Jacobaea aquatica
Marsh Ragwort
Jacobaea vulgaris
Common Ragwort
Jasione montana
Sheep's-bit