Epilobium leptocarpum Hausskn.
small-fruited willowherb (slenderfruit willowherb)
Onagraceae (Evening Primrose family)

Introduction to Vascular Plants

Photograph

© Jamie Fenneman     (Photo ID #30005)


Map

E-Flora BC Static Map

Distribution of Epilobium leptocarpum
Click here to view the full interactive map and legend

Species Information

General:
Perennial herb from a taproot; stems erect or decumbent at base, 5-30 cm tall, slender, simple or branched, often reddish, hairy or glabrous except for decurrent lines of hairs from the leaf bases, with fleshy winter bulblets at the base; young vegetative buds often present in leaf axils.
Leaves:
Mostly opposite, lanceolate to lance-oblong or elliptic, 0.5-4 cm long, 2-13 mm wide, blunt to pointed at base, tapering to blunt tip, finely toothed, glabrous or hairy on the margins; short-stalked.
Flowers:
Inflorescence nodding to almost erect, few-flowered, terminal, short appressed-hairy; petals 2-6 mm long, whitish to pink; sepals 1-4 mm long, glabrous to short-hairy; stigmas broadly club-shaped.
Fruits:
Capsules, 1-5 cm long, more or less glabrous; seeds 0.8-1 mm long, pimply in parallel lines, tuft of hairs tawny, 3-6 mm long, persisting.

SourceThe Illustrated Flora of British Columbia

Illustration

If more than one illustration is available for a species (e.g., separate illustrations were provided for two subspecies) then links to the separate images will be provided below. Note that individual subspecies or varietal illustrations are not always available.

Ecology

Ecological Framework for Epilobium leptocarpum

The table below shows the species-specific information calculated from
original data (BEC database) provided by the BC Ministry of Forests and Range.
(Updated August, 2013)

Site Information
Value / Class

Avg

Min

Max

Elevation (metres)
1071 430 1600
Slope Gradient (%)
38 0 202

Aspect (degrees)
[0 - N; 90 - E; 180 - S; 270 - W]

85 10 270
Soil Moisture Regime (SMR)
[0 - very xeric; 4 - mesic;
8 - hydric]
4 0 8
Modal Nutrient Regime
Class
B
# of field plots
 species was recorded in:
12
Modal BEC Zone Class
IDF

All BEC Zones (# of stations/zone) species was recorded in

BWBS(1), ESSF(1), ICH(1), IDF(4), MS(3), PP(2)

Habitat and Range

Moist meadows and streambanks in the montane to alpine zones; rare throughout BC; N to AK and S to MT, ID and OR.

SourceThe Illustrated Flora of British Columbia

Synonyms

Synonyms and Alternate Names:
Epilobium leptocarpum var. leptocarpum