Annual or biennial, much-branched, mostly erect, 2-5 dm, the stem appressed-hairy; petioles 5-12 mm, about equaling the lance-oblong stipules; lfls all sessile or nearly so, oblanceolate to obovate-oblong, 1-2 cm; heads short-cylindric, 1-2 cm, on peduncles 1-4 cm from the upper axils; pedicels 0.5 mm; fls 5-7 mm; cal strongly 2-lipped, glabrous, the tube 5-nerved, 1 mm, the lobes lance-linear, the lower 1.2-1.8 mm, the upper half as long; cor yellow, the standard obovate, conspicuously striate-sulcate in age, usually serrulate, the wings dilated, concave and somewhat spreading at the summit; 2n=16. Native of Eurasia, established as a weed along roadsides and in waste places from Nf. to B.C., to S.C. and Ark. May-Sept. (T. agrarium, a rejected name)
Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.
©The New York Botanical Garden. All rights reserved. Used by permission.
From Flora of Indiana (1940) by Charles C. Deam
Probably introduced throughout the state. My specimens are mostly from open woods, pastures, fallow fields, and roadsides.
Indiana Coefficient of Conservatism: C = null, non-native
Wetland Indicator Status: N/A
Citation: The vPlants Project. vPlants: A Virtual Herbarium of the Chicago Region. http://www.vplants.org
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