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

Symphyotrichum ericoides var. pansum (L.) G.L. Nesom (S.F. Blake) G.L. Nesom
tufted white prairie aster
Asteraceae (Aster family)

Introduction to Vascular Plants
Once images have been obtained, photographs of this species will be displayed in this window.Click on the image to enter our photo gallery.
Currently no image is available for this taxon.
E-Flora BC Static Map
Distribution of Symphyotrichum ericoides var. pansum
Click here to view our interactive map and legend
Details about map content are available here
Click on the map dots to view record details.

Species Information

Click on the image below to view an expanded illustration for this species.

Perennial herb from a fibrous-rooted short rhizome or branched, woody stem-base; stems ascending, much branched and hairy above, 30-200 cm tall.
Basal leaves soon deciduous; stem leaves numerous, linear, short-haired to glabrate, rough-margined, often spine-tipped, 2-7 cm long, 1-6 mm wide.
Heads with ray and disk flowers, usually numerous in a branched open inflorescence, tending to become one-sided on the recurving branches; involucres 4-7 mm tall; involucral bracts graduated, outermost spreading and spoon-shaped, the others mostly linear, spine-tipped, with a whitish base and firm green tips, often hairy on the margins and back; ray flowers 12-30, white, 3-8 mm long; disk flowers yellow.
Achenes appressed-hairy; pappus white to straw-colored.
Aster ericoides ssp. pansus is easily confused with A. falcatus which has a similar ecology and distribution. The former, however, has numerous flowers borne on the recurved-ascending branches while the latter has flowers usually borne singly on the ends of the branches.

Source: The Illustrated Flora of British Columbia

Habitat / Range

Mesic to dry grasslands, shrublands, alkaline flats, rocky slopes, disturbed areas and open forests in the lowland, steppe and montane zones; common in SC and SE BC, less frequent in NE BC, rare on S Vancouver Island; N to YT and NT, E to MB and S to UT, AZ and OR.

Source: The Illustrated Flora of British Columbia


Ecological Framework for Symphyotrichum ericoides var. pansum

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) 525 905 1100
Slope Gradient (%) 0 4 60
Aspect (degrees)
[0 - N; 90 - E; 180 - S; 270 - W]
135 221 315
Soil Moisture Regime (SMR)
[0 - very xeric; 4 - mesic;
8 - hydric]
2 5 7
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: BG(1), IDF(22), PP(1), SBPS(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 ericoides subsp. pansus (S.F. Blake) A.G. Jones
Aster ericoides var. pansus (S.F. Blake) B. Boivin
Aster multiflorus var. pansus S.F. Blake
Aster pansus (S.F. Blake) Cronquist

Taxonomic and Nomenclatural Links

Additional Photo Sources

General References