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Perennials.  Stems are usually solitary from a short caudex or rhizomes.  Stems are glabrous toward the base, becoming short pubescent upwards near the branches.  Typical plant height is 2 to 3+ ft. (6 to 9+ dm).

The overall inflorescence is corymb-like, flat-or round-topped.  Branch inflorescences are corymb-like, flower heads are located at the tips of branches on short peduncles.

Flower heads are discoid.  Ray florets are lacking.  Disc florets are  bisexual, fertile, corollas white.  Involucral bracts are pubescent and gland-dotted.

Basal leaves are typically deciduous by flowering.  Stem leaves are opposite, lanceolate, finely toothed, sparsely pubescent and gland-dotted, lacking petioles.

Plants of dry woodlands, clearings, talus of ravines, steep banks.  Flowers August to September.  Native.

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Similar species:  Eupatorium perfoliatum, E. serotinum

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