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

Eurybia sibirica (L.) G.L. Nesom
Siberian aster (Arctic Aster)
Asteraceae (Aster family)

Introduction to Vascular Plants

© Adolf Ceska  Email the photographer   (Photo ID #5718)

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Distribution of Eurybia sibirica
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Species Information

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General:
Perennial herb from a slender rhizome; stems several to many, ascending to decumbent, sparsely to copiously short-hairy, simple to branched above, 3-50 cm tall.
Leaves:
Basal leaves soon deciduous; stem leaves usually reduced below, the middle ones unstalked, oblanceolate, 1.5-10 cm long, 4-35 mm wide, sparsely to copiously short-hairy on the lower surfaces, with few to many small teeth or entire.
Flowers:
Heads with ray and disk flowers, solitary to many in a compact inflorescence; involucres 6-16 mm tall; involucral bracts more or less graduated in several series, oblong or lance-oblong to linear, abruptly sharp-pointed to with long-pointed tips, fine-hairy on the back or rarely glabrous, thin, dry and papery below, evidently or obscurely green-tipped and more or less purple-margined or suffused white-purple; ray flowers 10-25, purple, 8-15 mm long; disk flowers yellow, 5.5-7.6 mm long, the tube equal or barely exceeding the slender limb.
Fruits:
Achenes strongly about 8-ribbed, sparsely stiff-hairy; pappus deep brownish, rarely yellowish or white.

Source: The Illustrated Flora of British Columbia

Habitat / Range

Mesic to dry gravelly slopes from the upper montane to alpine zones; common in BC in and E of the Coast-Cascade Mountains, rare on C Vancouver Island, absent along the coast and in WC BC; N to AK, YT and NT, E to SE AB and S to WY, ID, NW OR and NW WA.

Source: The Illustrated Flora of British Columbia

Ecology

Ecological Framework for Eurybia sibirica

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) 30 1485 2560
Slope Gradient (%) 0 26 99
Aspect (degrees)
[0 - N; 90 - E; 180 - S; 270 - W]
0 174 360
Soil Moisture Regime (SMR)
[0 - very xeric; 4 - mesic;
8 - hydric]
0 3 7
Modal Nutrient Regime
Class
C
Number of field plots
 species was recorded in:
141
Modal BEC Zone Class
ESSF
All BEC Zones (# of stations/zone) species was recorded in: AT(7), BAFA(4), BG(1), BWBS(25), ESSF(56), ICH(2), IDF(4), IMA(3), MH(3), MS(3), SBPS(7), SBS(12), SWB(3)

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

Aster pygmaeus
Aster sibiricus L.
Aster sibiricus subsp. pygmaeus
Aster sibiricus subsp. sibiricus
Aster sibiricus var. pygmaeus
Aster sibiricus var. sibiricus
Aster subintegerrimus (Trautv.) Ostenf. & Resvoll

Taxonomic and Nomenclatural Links

Additional Photo Sources

Related Databases

General References