Stems erect, to 1.5 m, often branched above, white-tomentose; lvs oblong-oblanceolate, entire or obscurely toothed, sessile but not decurrent, softly tomentose beneath, green and glabrous or nearly so above; infl commonly freely branched, forming a large pyramidal panicle of loose interrupted racemes, the fls distinctly pedicellate, several at each node; cor yellow (white), 10-20 mm wide; filament-hairs yellow or white; 2n=32, 34. Native of Eurasia, found as an occasional weed in fields and waste places in our range, especially eastward. June-Oct.
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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