Heracleum mantegazzianum
Giant Hogweed
Heracleum sphondylium
Hogweed
Hieracium sect. Vulgata
Humulus lupulus
Hop
Hypericum androsaemum
Tutsan
Hypericum hircinum
Stinking Tutsan
Hypericum hirsutum
Hairy St John's-wort
Hypericum x desetangsii
Des Etangs' St John's-wort
Ilex aquifolium
Holly
Lamium purpureum
Red Dead-nettle
Lapsana communis
Nipplewort
Lathyrus latifolius
Broad-leaved Everlasting-pea
Lepidium draba
Hoary Cress
Lonicera periclymenum
Honeysuckle
Lotus corniculatus
Common Bird's-foot-trefoil
Lysichiton americanus
American Skunk-cabbage
Lythrum salicaria
Purple-loosestrife
Melampyrum pratense
Common Cow-wheat
Parietaria judaica
Pellitory-of-the-wall
Persicaria maculosa
Redshank
Petasites pyrenaicus
Winter Heliotrope
Phuopsis stylosa
Caucasian Crosswort
Piptoporus betulinus
Birch Polypore
Polypodium interjectum
Intermediate Polypody