E-Flora BC: Electronic Atlas of the Flora of British Columbia

Achillea alpina L.
Siberian yarrow
Asteraceae (Aster family)

Introduction to Vascular Plants

© Alfred Cook  Email the photographer   (Photo ID #8284)

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Distribution of Achillea alpina
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Species Information

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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.

Source: The Illustrated Flora of British Columbia

Habitat / 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.

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)

Site Information
Value / Class

Minimum

Average

Maximum

Elevation (metres) 300 459 594
Slope Gradient (%) 0 0 3
Aspect (degrees)
[0 - N; 90 - E; 180 - S; 270 - W]
180 229 360
Soil Moisture Regime (SMR)
[0 - very xeric; 4 - mesic;
8 - hydric]
3 5 7
Modal Nutrient Regime
Class
D
Number 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)

Climate

The climate type for this species, as reported in the: "British Columbia plant species codes and selected attributes. Version 6 Database" (Meidinger et al. 2008), is not evaluated, unknown or variable.

Synonyms and Alternate Names

Achillea multiflora Hook.
Achillea sibirica Ledeb.

Taxonomic and Nomenclatural Links

Additional Photo Sources

Related Databases

General References