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Manitoba to MN, IA, and OK, west to British Columbia and CA
Herbaceous perennial, colonial by roots; stem stout, erect, to 1 m, hairy; leaves ovate to lance-ovate or ovate-oblong, 10-15 cm, broadly rounded or subcordate at the base, hairy beneath; petioles 3-6 mm; umbels usually few, 5-7 cm wide; pedicels stout, 3-7 cm; corolla greenish-purple or salmon-colored, its lobes 10-15 mm; hoods 10-15 mm, abruptly narrowed below the middle to a linear-oblong tip; horns short, inflexed; fruit tomentose and with soft filiform processes.
Flowers July to August
Wetland Indicator: FAC
Similar in appearance to A. syriaca but with much longer hoods.
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
© Michael Hough 2018