Geranium robertianum
Herb-Robert
Geranium versicolor
Pencilled Crane's-bill
Geum urbanum
Wood Avens
Glechoma hederacea
Ground-ivy
Gymnadenia conopsea
Chalk Fragrant-orchid
Helianthemum apenninum
White Rock-rose
Helianthemum nummularium
Common Rock-rose
Helleborus foetidus
Stinking Hellebore
Heracleum sphondylium
Hogweed
Hippophae rhamnoides
Sea-buckthorn
Hornungia petraea
Hutchinsia
Hyacinthoides non-scripta
Bluebell
Hydrocharis morsus-ranae
Frogbit
Hydrocotyle vulgaris
Marsh Pennywort
Hygrocybe chlorophana
Hygrocybe coccinea
Scarlet Waxcap
Hypericum hirsutum
Hairy St John's-wort
Hypericum montanum
Pale St John's-wort
Hypericum perforatum
Perforate St John's-wort
Hypericum pulchrum
Slender St John's-wort
Hypericum tetrapterum
Square-stalked St John's-wort
Hypochaeris radicata
Cat's-ear
Ilex aquifolium
Holly
Inula conyzae
Ploughman's-spikenard