Arnica lanceolata subsp. prima (Maguire) Strother & Wolf
streambank arnica
Asteraceae (Aster family)
Introduction to Vascular Plants
streambank arnica
Asteraceae (Aster family)
Introduction to Vascular Plants
Photograph
Map
Distribution of Arnica lanceolata subsp. prima
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Species Information
General:
Perennial herb from creeping rhizomes; stems leafy, erect, unbranched except in inflorescence, usually somewhat hairy and glandular at least in the upper portion, 15-80 cm tall.
Leaves:
Basal leaves small, often deciduous by flowering time; stem leaves opposite, mostly unstalked, usually in 5-10 pairs (sometimes 4), lance-shaped to oblanceolate, toothed, 2-12 cm long, nearly glabrous to glandular-hairy.
Flowers:
Heads with ray and disk flowers, 1-5 (sometimes up to 10), on stalks with yellowish hairs and often stalked glands; involucres 7-15 mm tall; involucral bracts lance-shaped, sharp-pointed, hairy; ray flowers pale yellow, 8-14, 1-2 cm long, conspicuously toothed at tip; disk flowers yellow.
Fruits:
Achenes 4-6.2 mm long, sparsely stiff-hairy, sometimes glandular; pappus brownish, somewhat feathery.
Ecology
Ecological Framework for Arnica lanceolata ssp. prima
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) |
1395 | 510 | 2268 |
| Slope
Gradient (%) |
24 | 0 | 85 |
|
Aspect (degrees) |
143 | 11 | 273 |
| Soil
Moisture Regime (SMR) [0 - very xeric; 4 - mesic; 8 - hydric] |
5 | 0 | 7 |
| Modal
Nutrient Regime
Class |
D | ||
| #
of field plots species was recorded in: |
25 | ||
| Modal
BEC Zone Class |
ESSF | ||
|
All BEC Zones (# of stations/zone) species was recorded in |
CWH(1), ESSF(10), ICH(1), MH(4), MS(4), SBPS(1), SBS(1) | ||
|
Source:
Klinkenberg 2013
|
|||
Habitat and Range
Moist to mesic meadows and forest openings in the lowland and montane zones; common in S BC, rare northward; N to S AK and YT and S to CA and NM.Status Information
Synonyms
Synonyms and Alternate Names:
Arnica amplexicaulis Nutt.
Arnica amplexicaulis subsp. amplexicaulis