Achillea alpina L.
Siberian yarrow
Asteraceae (Aster family)

Introduction to Vascular Plants

Photograph

© Alfred Cook     (Photo ID #8284)


Map

E-Flora BC Static Map

Distribution of Achillea alpina
Click here to view the full interactive map and legend

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.

SourceThe Illustrated Flora of British Columbia

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.

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)

Site Information
Value / Class

Avg

Min

Max

Elevation (metres)
459 300 594
Slope Gradient (%)
0 0 3

Aspect (degrees)
[0 - N; 90 - E; 180 - S; 270 - W]

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)

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.

SourceThe Illustrated Flora of British Columbia

Synonyms

Synonyms and Alternate Names:
Achillea multiflora Hook.
Achillea sibirica Ledeb.