Flora of North America species comparison

(when present) 1–3 dm.

petiole 1.8–3.9 cm;

blade 3.5–6.5(–8) cm, lobes 1–3 on each side, margins shallowly dentate, terminal lobe suborbicular, 6–12 × 5–11 mm (equal to or slightly longer than wide), considerably larger than lateral lobes, margins usually shallowly dentate, sometimes slightly lobed.

sepals widely spreading, oblong-linear, 2.9–4.6 × 1–1.9 mm;

petals spreading, pale yellow, obcordate to broadly obovate, (5–)6–9 × 1.5–4.5 mm, claw bright yellow, 1.6–2.8 mm, apex shallowly emarginate, apical notch 0.1–0.4(–0.6) mm deep;

filaments: median 3–4.5 mm, lateral 1.3–2.4 mm;

anthers 0.6–1.1 mm.

solitary flowers 30–90 mm;

racemes 30–60 mm.

oblong, 2–3.1 cm × 3–5 mm, smooth, latiseptate, (margined);

valves thin;

ovules 6–14 per ovary;

style (1.5–)2–3 mm.

2–4.2 mm diam.;

wing 0.2–0.3 mm wide;

embryo straight.

= 48.