Flora of North America species comparison

simple or few to several from base, erect or decumbent, usually branched distally, 0.5–5 dm, pubescent basally, trichomes mixed simple, 1-forked, and (fewer) stellate ones, rarely 3-rayed, glabrous or pubescent apically.

petiole 0.5–6 cm;

blade oblanceolate or ovate, 0.5–8.5 cm × 2–18 mm, margins entire, dentate, or lyrate-pinnatifid (when lobed, terminal lobes larger than lateral), apex obtuse, surfaces glabrous or sparsely to densely pubescent.

shortly petiolate or sessile;

blade oblanceolate, 0.4–4.2 cm × 1–8(–10) mm (smaller distally), margins usually entire, repand, or obscurely toothed, rarely lobed.

sepals 2–4.5 mm, lateral pair saccate basally, (glabrous or densely pubescent);

petals white or purplish, spatulate or obovate, 4–10 × 1.5–4 mm, (claw to 2 mm, toothless);

filaments 2–4 mm.

divaricate or ascending, 2–15 mm.

torulose, flattened, (1.5–)2–4.5 cm × 0.8–1.8 mm;

valves each with distinct midvein;

ovules 24–46 per ovary;

style 0–1 mm.

light brown, (flattened), oblong, 0.8–1.4 mm;

cotyledons accumbent.