Symphyotrichum laeve (L.) A. Löve & D. Löve
Smooth Blue Aster, Smooth Blue American-aster
|Kingdom||Plantae||Plants, but not fungi, lichens, or algae|
|Subkingdom||Tracheobionta||Vascular plants—plants with a “circulatory system” for delivering water and nutrients|
|Division||Magnoliophyta||Flowering plants, also known as angiosperms|
|Class||Magnoliopsida||Dicotyledons—plants with two initial seed leaves|
|Subclass||Asteridae||A large class that encompasses asters|
|Order||Asterales||Flowering plants with a central disk flower and surrounding petals, like daisies|
|Family||Asteraceae||The aster family, which also includes daisies and sunflowers; from the Greek ἀστήρ, “star,” for the star-shaped flowers|
|Genus||Symphyotrichum||From Greek symphysis, “borne together or growing together, coalescing,” and trichinos, “hair, a single hair”|
|Species||laeve||Latin laevis, “smooth”|
About plant names...
Smooth blue asters are North American natives.
Plants are 20-39" (50-100 cm) in height. Stems are waxy and smooth, green with a whitish covering, sometimes
Leaves are smooth, bluish in color, thick and firm, usually toothless, usually hairless, and clasping.
Flowers are bluish to purple (rarely white), ¾-1¼" (1.9-3.2 cm) across, appearing from August to October.
Central disc flowers are yellow, aging to purple. There are 13-23 (rarely up to 11-34) rays on each flower.
The appear in loose panicles.
Symphyotrichum laeve on Ontario Wildflowers
Symphyotrichum laeve on the New England Wildflower Society’s GoBotany site
Symphyotrichum laeve at Minnesota Wildflowers
Symphyotrichum laeve on the Connecticut Botanical Society's Connecticut wildflowers site
Symphyotrichum laeve at the Missouri Botanical Garden
Symphyotrichum laeve at the Lady Bird Johnson Wildflower Center
Symphyotrichum laeve on the USDA Forest Service's Fire Effects Information Database
Symphyotrichum laeve on eFloras
Clemants, Steven; Gracie, Carol, Wildflowers in the Field and Forest, Oxford University Press, 2006, p. 20
Newcomb, Lawrence, Morrison, Gordon (Illus.), Newcomb’s Wildflower Guide, Little, Brown and Company, 1977, p. 460
Peterson, Roger Tory, McKenny, Margaret, Peterson Field Guides: A Field Guide to Wildflowers of Northeastern and North Central North America, Houghton Mifflin, 1968, p. 356
Symphyotrichum laeve description by Thomas H. Kent, last updated 12 Oct 2018.
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9/19/2013 · Harvard, MA
≈ 8 × 7" (20 × 18 cm) ID is uncertain
9/19/2013 · Harvard, MA
≈ 11 × 7" (28 × 18 cm) ID is uncertain
Range: Zones 3-8:
About this map...