Symphyotrichum undulatum (L.) G.L. Nesom - Wavy-leaved Aster


 

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Symphyotrichum undulatum - (image 1 of 4)

 

Taxonomy

Family: Asteraceae

Habitat

Dry, open woods and clearings.

Associates

 

Distribution

ME to FL, west to OH, southeast IN, eastern TN and central MS, and southeast LA.

Morphology

Herbaceous perennial from a branched caudex or short rhizome; stems 30-120 cm, densely pubescent with short, spreading hairs to subglabrous below the inflorescence; leaves entire or toothed, scabrous to glabrous above, usually shortly and loosely hairy beneath, at least the lower leaves cordate or subcordate at the base and petiolate, lance-ovate to ovate, those above variable in size and shape, but some either sessile and cordate clasping or with the petiole enlarged and auriculate-clasping at the base; inflorescence paniculiform, the branches and well developed peduncles spreading and bracteate; involucre 4-7 mm, usually puberulent; involucral bracts imbricate, acute or acuminate, often minutely purple-tipped; rays 10-20, blue or lilac.

Notes

Flowers August to October

Wetland Indicator: NA

These photos are of plants that I grew from seed and planted out in full sun so they are a little more compact than plants would normally be growing in more shade.

References

Gleason, Henry A. and A. Cronquist. 1991. Manual of Vascular Plants of Northeastern United States and Adjacent Canada. Second Ed.

The New York Botanical Garden. Bronx, NY

 


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Michael Hough 2018