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

Symphyotrichum ascendens (Lindl.) G.L. Nesom
long-leaved aster
Asteraceae (Aster family)

Introduction to Vascular Plants

© Jamie Fenneman  Email the photographer   (Photo ID #3796)

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Distribution of Symphyotrichum ascendens
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Species Information

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Perennial herb from a branched, woody stem-base or rhizome; stems branched above, with straight, appressed hairs, 30-60 cm tall.
Basal leaves narrowly oblanceolate, tapering to a stalked base, usually entire, glabrous to slightly hairy, 2-10 cm long, 2-10 mm wide; stem leaves lanceolate to linear, usually entire, often slightly clasping, glabrous to slightly hairy,reduced upwards.
Heads with ray and disk flowers, few to many in an open, branched inflorescence; involucres 4-7 mm tall; involucral bracts strongly graduated, linear to linear-oblong, the outermost usually spoon-shaped, fringed, green above, pale below, glabrous to hairy on the back; ray flowers 10-40, violet or purple, 6-8 mm long; disk flowers yellow.
Achenes several-nerved, stiff-hairy; pappus white to tan.

Source: The Illustrated Flora of British Columbia

Habitat / Range

Dry slopes and forest openings in the steppe and lower montane zones; rare in SC and SE BC; E to SK and S to NM, AZ and CA.

Source: The Illustrated Flora of British Columbia


Ecological Framework for Symphyotrichum ascendens

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




Elevation (metres) 2459 2460 2461
Slope Gradient (%) 50 57 65
Aspect (degrees)
[0 - N; 90 - E; 180 - S; 270 - W]
82 131 180
Soil Moisture Regime (SMR)
[0 - very xeric; 4 - mesic;
8 - hydric]
1 1 1
Modal Nutrient Regime
Number of field plots
 species was recorded in:
Modal BEC Zone Class
All BEC Zones (# of stations/zone) species was recorded in: ESSF(1), IMA(1)


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 adscendens Lindl.
Aster ascendens Lindl.
Aster chilensis subsp. adscendens (Lindl.) Cronquist
Aster macounii Rydb.
Aster subgriseus Rydb.
Virgulaster ascendens (Lindl.) Semple

Taxonomic and Nomenclatural Links

Additional Photo Sources

General References