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

Symphyotrichum laeve var. laeve
smooth blue aster
Asteraceae (Aster family)

Introduction to Vascular Plants
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E-Flora BC Static Map
Distribution of Symphyotrichum laeve var. laeve
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This eastern North American variety has spread from commercial plantings into a vacant lot in New Westminster (Lomer 7506 @ UBC).

Species Information

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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.
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.
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.
Achenes 4-5 nerved, glabrous; pappus usually reddish.

USDA Species Characteristics

Flower Colour:
Blooming Period:
Mid Summer
Fruit/Seed characteristics:
Colour: Brown
Present from Summer to Fall
Source:  The USDA

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

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