E-Flora BC: Electronic Atlas of the Flora of British Columbia

Epilobium hirsutum L.
hairy willlowherb (codlins and cream; hairy willowherb)
Onagraceae (Evening Primrose family)

Introduction to Vascular Plants

© Jamie Fenneman  Email the photographer   (Photo ID #7418)

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Distribution of Epilobium hirsutum
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Species Information

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General:
Perennial herb from a rhizome; stems erect, 80-150 cm tall, branching above, densely glandular-hairy with some spreading hairs.
Leaves:
Mostly opposite, oblong-lanceolate, 6-12 cm long, 1.5-2.5 cm wide, reduced above and on branches, tips pointed, hairy, especially along veins, margins toothed and fringed; unstalked.
Flowers:
Inflorescence of terminal racemes on main stem and branches, flowers erect in bud; petals broadly egg-shaped, distinctly notched, 12-16 mm long, deep purplish-rose; sepals 7-9 mm long, hooded, sharp-pointed; outer stamens twice length of inner; stigmas 4-lobed, exceeding longest stamens.
Fruits:
Capsules, 5-8 cm long, downy-hairy; seeds about 1 mm long, oblong egg-shaped, pointed at base, brownish-red, dense with sharp pimples.

Source: The Illustrated Flora of British Columbia

Habitat / Range

Roadside ditches and moist waste places in the lowland zone; rare in SW BC (lower Fraser Valley) and SC BC (Okanagan Valley); introduced from Eurasia.

Source: The Illustrated Flora of British Columbia

Climate

The climate type for this species, as reported in the: "British Columbia plant species codes and selected attributes. Version 6 Database" (Meidinger et al. 2008), is not evaluated, unknown or variable.

Taxonomic and Nomenclatural Links

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General References