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

Symphyotrichum laeve (L.) Á. Löve & D. Löve
smooth aster
Asteraceae (Aster family)

Introduction to Vascular Plants

© Jamie Fenneman  Email the photographer   (Photo ID #30149)

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Distribution of Symphyotrichum laeve
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Species Information

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General:
Perennial herb from a fibrous-rooted, usually short rhizome or woody stem-base; stems erect, branched above, glabrous or nearly so, 0.4-1.2 m tall.
Leaves:
Basal leaves stalked and soon deciduous; stem leaves lanceolate to broadly lanceolate or egg-shaped, unstalked and usually clasping, 8-18 cm long, 1-3.5 cm wide, entire or shallowly toothed, glabrous or nearly so and tending to be glaucous.
Flowers:
Heads with ray and disk flowers, few to many in an open, round-topped inflorescence; involucres 5-7 mm tall; involucral bracts graduated, linear or often awl-shaped, sharply pointed with elongate green tips, margins fringed with small hairs; ray flowers 15-30, blue or purple, 6-10 mm long; disk flowers yellow.
Fruits:
Achenes 4-5 nerved, glabrous; pappus usually reddish.

Source: The Illustrated Flora of British Columbia

Habitat / Range

Mesic to dry meadows and forests in the lowland and montane zones; common in S BC east of the Coast-Cascade Mountains and S of 55degreeN, less frequent in NE BC and S Vancouver Island, lacking from NW BC; N to NT, E to ON and S to KS, MO, UT, NM and OR.

Source: The Illustrated Flora of British Columbia

Ecology

Ecological Framework for Symphyotrichum laeve

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) 500 1187 2012
Slope Gradient (%) 0 27 82
Aspect (degrees)
[0 - N; 90 - E; 180 - S; 270 - W]
10 212 360
Soil Moisture Regime (SMR)
[0 - very xeric; 4 - mesic;
8 - hydric]
1 3 7
Modal Nutrient Regime
Class
C
Number of field plots
 species was recorded in:
110
Modal BEC Zone Class
IDF
All BEC Zones (# of stations/zone) species was recorded in: ESSF(22), ICH(5), IDF(55), MS(25), PP(2)

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 laevis

Taxonomic and Nomenclatural Links

Additional Photo Sources

Related Databases

General References