Stems stout, erect, to 1 m, puberulent; lvs elliptic to ovate-oblong, 10-15 cm, hairy beneath, broadly cuneate to a petiole 8-25 mm; umbels few or one, terminal and subterminal, many-fld, on peduncles to 5 cm; cor normally purple, its lobes 7-10 mm; hoods pale purple, 5-7 mm, surpassing the gynostegium, without lateral teeth but often somewhat widened near the middle; horns short, flat, incurved; fr downy, without processes. Dry soil; s. N.H. to Va., w. to Wis., Io., Kans., and Okla. June, July.
Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.
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From Flora of Indiana (1940) by Charles C. Deam
Infrequent throughout the state. Usually only one or a few plants are found together. It has various habitats. The most common one is a rather dry, and usually somewhat sandy soil in open woodland and along roadsides. Also found in damp, open woodland about swamps and lakes and even in tamarack bogs.
Citation: The vPlants Project. vPlants: A Virtual Herbarium of the Chicago Region. http://www.vplants.org
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