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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SUBTAXA PRESENT IN BC
Achillea alpina ssp. multiflora

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

Flora North America treatment for Asteraceae
 Flora North America treatment for Achillea alpina
Genetic information (NCBI Taxonomy Database)
 International Plant Names Index
 Taxonomic Information from the World Flora Online
 Integrated Taxonomic Information System

Additional Photo Sources

Images From CalPhoto
UT Austin's Native Plant Database
 Google Image Search
 Flickr Image Search

General References

Google Scholar Search
Family References
 General Botanical References for BC
Recommended citation: Author, Date. Page title. In Klinkenberg, Brian. (Editor) 2020. E-Flora BC: Electronic Atlas of the Plants of British Columbia [eflora.bc.ca]. Lab for Advanced Spatial Analysis, Department of Geography, University of British Columbia, Vancouver. [Accessed: 2024-11-24 2:09:31 AM ]
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