Epilobium brachycarpum C. Presl
tall annual willowherb
Onagraceae (Evening Primrose family)
Introduction to Vascular Plants
tall annual willowherb
Onagraceae (Evening Primrose family)
Introduction to Vascular Plants
Species Information
General:
Annual herb from a taproot; stems erect, 20-100 (200) cm tall, glabrous and peeling below, appressed short stiff-hairy and generally glandular-hairy above.
Leaves:
Alternate, generally deciduous early, linear to narrowly elliptic, 1-5 cm long, sharp-pointed, usually folded along midrib, more or less glabrous, often with bundles of smaller leaves in axils of leaves.
Flowers:
Inflorescence terminal, open, panicle-like; hypanthium 1.5-8 (16) mm long; petals 2-15 mm long, white to rose-purple, notched at tip; sepals 2-8 mm long; stamens less than or equal to length of pistil; stigmas club-shaped or occasionally 4-lobed.
Fruits:
Capsules, 1.5-3.5 cm long, glabrous or glandular; stalks 3-20 mm long; seeds 1.4-2.7 mm long, pimply, tuft of hair white, 7-8 mm long, readily detaching.
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 brachycarpum
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) |
630 | 171 | 1884 |
| Slope
Gradient (%) |
27 | 0 | 84 |
|
Aspect (degrees) |
206 | 0 | 360 |
| Soil
Moisture Regime (SMR) [0 - very xeric; 4 - mesic; 8 - hydric] |
2 | 0 | 6 |
| Modal
Nutrient Regime
Class |
C | ||
| #
of field plots species was recorded in: |
194 | ||
| Modal
BEC Zone Class |
CWH | ||
|
All BEC Zones (# of stations/zone) species was recorded in |
BG(19), CDF(3), CWH(79), ESSF(3), ICH(13), IDF(32), MS(19), PP(14), SBS(2) | ||
|
Source:
Klinkenberg 2013
|
|||
Habitat and Range
Dry shrublands, forest openings and disturbed areas in the lowland, steppe and lower montane zones; common in S BC, especially E of the Coast-Cascade Mountains; E to PQ and NB and S to CA.Status Information
Synonyms
Synonyms and Alternate Names:
Epilobium paniculatum Nutt. ex Torr. & A. Gray
Epilobium paniculatum var. hammondii (Howell) M. Peck
Epilobium paniculatum var. juncundum (A. Gray) Trel.
Epilobium paniculatum var. laevicaule (Rydb.) Munz
Epilobium paniculatum var. paniculatum
Epilobium paniculatum var. subulatum (Hausskn.) Fernald
Epilobium paniculatum var. tracyi (Rydb.) Munz