Flora of North America species comparison

branched distally, 3–9 dm.

(early deciduous);

petiole 1.5–6 cm;

blade lyrate-pinnatifid, 3–10(–15) cm × 10–65 mm, lobes 1–3 (or 4) each side.

shortly petiolate;

blade (often lanceolate, reduced in size distally), base tapered or cuneate, not auriculate, (apex acute).

paniculately branched.

sepals 3–8 × 1–1.7 mm;

petals pale yellow, narrowly obovate, 7–15 × 3–4 mm, claw 2–3 mm, apex rounded;

filaments 3–6 mm;

anthers 1.5–2 mm;

gynophore 1–1.5 mm in fruit.

spreading to divaricately ascending, (slender), (5–)10–15(–25) mm.

(stipitate), spreading to divaricately ascending, strongly torulose, linear, subcylindric, 1.5–3 cm × 1.5–2 mm;

valvular segment with 5–13 seeds per locule, 1.2–2.5 cm, terminal segment seedless or 1-seeded, (conic), 3–6 mm.

brown or yellow, 0.6–1.2 mm diam.;

seed coat finely reticulate-alveolate, not mucilaginous when wetted.

= 16.