Epilobium davuricum Fisch. ex Hornem.
northern swamp willowherb (Dahurian willowherb)
Onagraceae (Evening Primrose family)
Introduction to Vascular Plants
northern swamp willowherb (Dahurian willowherb)
Onagraceae (Evening Primrose family)
Introduction to Vascular Plants
Photograph
Species Information
General:
Perennial herb from a short rhizome, lacking stolons; stems erect, to 20 cm tall, simple, single or a few together, green or sometimes reddish, upper internodes with fine curved hairs in lines.
Leaves:
Basal leaves in a compact rosette, oblong-elliptic, blunt; stem leaves alternate above, opposite or nearly so below, linear, flat, 2-5 cm long, blunt, entire or somewhat toothed, margins fringed with hairs.
Flowers:
Inflorescence few-flowered, terminal, flowers nodding when young; petals 4-5 mm long, whitish; sepals glabrous.
Fruits:
Capsules, glabrous or usually becoming so; seeds 1-2 mm long, pimply, tuft of hairs present, dingy.
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.
Illustration Source: The Illustrated Flora of British Columbia
Ecology
Ecological Framework for Epilobium davuricum
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)
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) |
708 | 29 | 1905 |
| Slope
Gradient (%) |
1 | 0 | 3 |
|
Aspect (degrees) |
149 | 150 | 150 |
| Soil
Moisture Regime (SMR) [0 - very xeric; 4 - mesic; 8 - hydric] |
5 | 4 | 7 |
| Modal
Nutrient Regime
Class |
C | ||
| #
of field plots species was recorded in: |
3 | ||
| Modal
BEC Zone Class |
CWH | ||
|
All BEC Zones (# of stations/zone) species was recorded in |
BAFA(1), CWH(1), ICH(1) | ||
|
Source:
Klinkenberg 2013
|
|||
Habitat and Range
Wet meadows and bogs in the montane and subalpine zones; rare in N and SE BC, known only from Spatsizi Plateau and the Selkirk Mountains; circumpolar, N to AK and YT and E to NF; Eurasia.Status Information
Synonyms
Synonyms and Alternate Names:
Epilobium davuricum subsp. davuricum
Epilobium palustre var. davuricum (Fisch. ex Hornem.) S.L. Welsh