Achillea alpina L.
Siberian yarrow
Asteraceae (Aster family)
Introduction to Vascular Plants
Siberian yarrow
Asteraceae (Aster family)
Introduction to Vascular Plants
Photograph
© Alfred Cook (Photo ID #8284)
SUBTAXA PRESENT IN BC
Achillea alpina ssp. multiflora
Species Information
General:
Perennial, aromatic herb, usually rhizomatous, 30-120 cm tall; stems erect, densely hairy, simple or branched above.
Leaves:
Alternate, linear, 2-15 cm long, incised, the divisions finely toothed, gradually reduced upwards.
Flowers:
Heads few to many, in short, flat or round-topped clusters; involucral bracts with pale to dark margins; ray flowers usually 7-12, 1-3 mm long, white; disk flowers 15-30.
Fruits:
Achenes glabrous, 1-2 mm long; pappus lacking.
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 Achillea alpina
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) |
459 | 300 | 594 |
| Slope
Gradient (%) |
0 | 0 | 3 |
|
Aspect (degrees) |
229 | 180 | 360 |
| Soil
Moisture Regime (SMR) [0 - very xeric; 4 - mesic; 8 - hydric] |
5 | 3 | 7 |
| Modal
Nutrient Regime
Class |
D | ||
| #
of field plots species was recorded in: |
6 | ||
| Modal
BEC Zone Class |
BWBS | ||
|
All BEC Zones (# of stations/zone) species was recorded in |
BWBS(6) | ||
|
Source:
Klinkenberg 2013
|
|||
Habitat and Range
Mesic to moist river banks, lakeshores and meadows in the montane zone; frequent in NE BC; N to AK, YT and NT and E to MB, disjunct to Gaspe Peninsula, PQ.Synonyms
Synonyms and Alternate Names:
Achillea multiflora Hook.
Achillea sibirica Ledeb.