Epilobium lactiflorum Hausskn.
white-flowered willowherb (milkflower willowherb)
Onagraceae (Evening Primrose family)
Introduction to Vascular Plants
white-flowered willowherb (milkflower willowherb)
Onagraceae (Evening Primrose family)
Introduction to Vascular Plants
Species Information
General:
Perennial herb from leafy stolons; stems 15-50 cm tall, often clumped, densely short stiff-hairy in lines below, glandular-hairy and short stiff-hairy above (in inflorescence).
Leaves:
Elliptic or narrowly egg-shaped to lanceolate, 2-5.5 cm long, 0.8-2.4 cm wide, glabrous, margins short stiff-hairy, finely-toothed; stalks of lower leaves winged, 3-12 mm long, upper leaves unstalked.
Flowers:
Inflorescence usually nodding in bud; hypanthium 1-2.2 mm long; petals 3-6.8 mm long, white or sometimes pinkish or with red veins, notched at tip; sepals 2-3.6 mm long, sparsely glandular-hairy; ovaries 2-4 cm long, densely glandular-hairy; anthers 0.4-0.9 mm long; styles 1.4-4.6 mm long; stigmas club-shaped, rarely somewhat head-shaped.
Fruits:
Capsules, 5-10 cm long, glandular-hairy; seeds 1.1-1.6 mm long, narrowly egg-shaped, netted, tuft of hairs white, 7-14 mm long, readily detaching; stalks 2-4.5 cm long.
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 lactiflorum
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) |
1562 | 190 | 2394 |
| Slope
Gradient (%) |
25 | 0 | 110 |
|
Aspect (degrees) |
202 | 0 | 360 |
| Soil
Moisture Regime (SMR) [0 - very xeric; 4 - mesic; 8 - hydric] |
4 | 0 | 8 |
| Modal
Nutrient Regime
Class |
D | ||
| #
of field plots species was recorded in: |
85 | ||
| Modal
BEC Zone Class |
ESSF | ||
|
All BEC Zones (# of stations/zone) species was recorded in |
AT(18), BAFA(6), CMA(1), CWH(2), ESSF(29), ICH(3), IDF(1), IMA(3), MH(10), MS(3), SBS(3), SWB(3) | ||
|
Source:
Klinkenberg 2013
|
|||
Habitat and Range
Wet to mesic meadows in the lowland to alpine zones; frequent throughout BC; circumboreal, N to AK, E to NF and S to NH, CO and CA; Eurasia.Status Information
Synonyms
Synonyms and Alternate Names:
Epilobium alpinum var. lactiflorum (Hausskn.) C.L. Hitchc.
Epilobium hornemannii var. lactiflorum (Hausskn.) D. L÷ve