"Erect to sometimes nearly prostrate; lvs usually glabrous beneath, sessile or on short petioles rarely to 3 mm, the base broadly obtuse to rounded or often subcordate and clasping; infl and cal usually glabrous; cor greenish-white or pale yellow; otherwise as in no. 2. Open places; Nf. to N.J. and W.Va., w. to Man. and Mo., and to the Pacific, more common westward. May–Sept. (A. hypericifolium) Perhaps better treated as A. cannabinum var. hypericifolium A. Gray."