Montana Field Guide

Perennial herb with a woody, branched caudex. Stems erect or ascending, 30–80 cm. Leaves all cauline, petiolate, 5–15 cm long, lanceolate to elliptic, pinnately lobed to entire. Vestiture of sparse, simple hairs. Petals yellow, 9–14 mm long, hairy on the inner surface. Fruit curved, 4–8 cm long; the stipe short-hairy, 12–21 mm long; pedicels spreading, 6–10 mm long (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Montana has varieties pinnata and integrefolia (E. James) Rollins.

Clay soil on open slopes of streambanks, badlands; plains, valleys (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).