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

Introduction to Vascular Plants


© Jamie Fenneman     (Photo ID #3796)


E-Flora BC Static Map

Distribution of Symphyotrichum ascendens
Click here to view the full interactive map and legend

Species Information

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.

SourceThe Illustrated Flora of British Columbia


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.


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)
2460 2459 2461
Slope Gradient (%)
57 50 65

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

131 82 180
Soil Moisture Regime (SMR)
[0 - very xeric; 4 - mesic;
8 - hydric]
1 1 1
Modal Nutrient Regime
# 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)

Habitat and 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.

SourceThe Illustrated Flora of British Columbia


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