Synonym:  Prenanthes altissima  L.

              

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Perennials.  Taprooted.  Stems are green or purple, glabrous below inflorescences.  The sap is milky white.  Typical height is 4 to 6+ feet.

Overall inflorescences are panicle-like, tall and narrow, or varying to broader, the branches spreading or ascending.  Flower heads are distributed singly or in small clusters along branches.

Flower heads are ligulate, borne on short peduncles, drooping in flower.  Florets number 4 to 6 per head, the corollas yellowish, varying to nearly white; the lobes often recurvedInvolucral bracts are in two series, the inner series, pale green; the outer series darker green, much shorter, glabrous.

The pappus is of minutely barbed bristles, whitish, varying to straw colored.

Lower stem leaves are often present at flowering.  Leaves are mostly glabrous or with a few hairs, varying in shape from broadly ovate to lanceolate, or halberd-shaped, sometimes with truncate or heart-shaped bases and lobed margins (sometimes 3-lobed); the lateral lobes tend to be ovate; the sinuses are rounded closest to the midvein.  The lower to mid-stem leaves are borne on long, winged petioles.

Plants of deciduous woods and clearings.  Flowers August into mid-September.  Native.

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Similar species:  N. albus, N. trifoliolatus.

 

 

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