Family: Asteraceae
common blue heart-leaved aster, common blue wood aster
[Aster cordifolius L., more... ]
Etymology: Aster: from the Greek aster, "a star," describing the radiate heads of the flowers
Plants: erect, perennial, 1/2'-4' tall forb, stems mostly hairless below the inflorescence
Leaves: thin, stalked, oval, sharply toothed, with deep heart-shaped bases
Flowers: stalked heads 2/3"-3/4" wide with 8-20 blue to purple rays; inflorescence dense, conical, branched clusters
Habitat: woods, clearings
Conservation Status: Native
Plants: erect, perennial, 1/2'-4' tall forb, stems mostly hairless below the inflorescence
Leaves: thin, stalked, oval, sharply toothed, with deep heart-shaped bases

Flowers: stalked heads 2/3"-3/4" wide with 8-20 blue to purple rays; inflorescence dense, conical, branched clusters
Habitat: woods, clearings
Conservation Status: Native
- Leaf margins with coarse teeth
- Leaf bases deeply cordate
- Petioles without wings or very narrowly winged (<1mm)
- Rays light purplish-blue
- Most similar to S. urophyllum, but with purplish-blue heads and more clearly toothed leaves
Flora of North America: Flora of North America Floristic Rating: Coefficient of Conservatism = 6 USDA Plants Database: Federal Distribution and detailed information including photos University of Wisconsin - Green Bay: Vascular Plants: Photos, descriptions, information David G. Smith's "Delaware Wilflowers": Beautiful photographs; descriptions Illinois Wildflowers: Wonderful photographs; detailed descriptions; color and leaf arrangement key