Smallflower hairy willowherb (Epilobium parviflorum)

Smallflower hairy willowherb Common Names: Hoary willowherb

Description: Known as a medicinal herb.

Habit: Small, growing up to 0.6 m in height, erect perennial.

Leaves: Lower in small rosette; leaves opposite, oblong, lanceolate, slightly toothed, sessile and longer than broad. Can grow 3-7 cm. in length.

Stems: Erect or ascending, mostly simple, terete, stiffly hairy.

Flowers: Light purple in color, isolated in the axil of smaller upper leaves, 6-9 mm. in diameter, petal 2-9 mm long, sepals equalling 2/3 of the length of the petals. Stigmas with 4 crossed lobes.

Fruit and seeds: Capsule 3.5-8 cm long, with small and jointed hairs.

Habitat: Native to Eurasia. Typically found in a variety of well-drained soils. Requires moist or wet soil and cannot grow in the shade.

Reproduction: Seeds spread by waterfowl or by wind dispersal.

Credits: The information provided in this factsheet was gathered from GLANSIS.


Common Name:

Smallflower hairy willowherb

Scientific Name:

Epilobium parviflorum


(Evening primrose)





USDA Symbol: