Also on the fringes occurs a more varied community characteristic of base-poor areas, with such species as marsh ragwort, lesser spearwort, devils-bit scaboius, marsh bedstraw and hoary willowherb, creeping bent, sweet vernal-grass, Yorkshire fog and purple moor-grass.

Epilobium parviflorum, commonly known as Smallflower Hairy Willowherb, is a herbaceous perennial plant belonging to the Onagraceae family.

"Smallflower willowherb" redirects here, which may also mean Epilobium parviflorum (see text).

Epilobium parviflorum (I)

However that name, in particular the British English variant "small-flowered willowherb", typically refers to Epilobium parviflorum.

Epilobium parviflorum, commonly known as Smallflower Hairy Willowherb, is a herbaceous perennial plant belonging to the Onagraceae family.

The larvae feed on Epilobium species, including Epilobium montanum, Epilobium palustre, Epilobium parviflorum, and Epilobium lanceolatum.

The biological form of Epilobium parviflorum is hemicryptophyte scapose, as its overwintering buds are situated just below the soil surface and the floral axis is more or less erect with a few leaves.

The larvae feed on Circaea x intermedia, Circaea lutetiana, Chamerion angustifolium, Epilobium collinum, Epilobium hirsutum, Epilobium montanum and Epilobium parviflorum.