Flora of North America species comparison

1.5–9 dm.

petiole not winged, base not auriculate;

blade 3–5(–7)-foliolate, (1.5–)3–7(–10) cm;

lateral leaflets petiolulate, rachis not winged, blade often much smaller than terminal;

terminal leaflets (or simple blade) subreniform, orbicular, ovate to oblong, or obovate, 0.5–3.5 × 0.5–3 cm, base obtuse, subcordate, rounded, or cuneate, margins repand, entire, or, rarely, obtusely dentate, apex obtuse or rounded.

sepals 2–3 × 1–1.5 mm;

petals white, spatulate, 4–5 × 1.5–2 mm, apex rounded;

filaments 2–3 mm;

anthers 0.6–0.9 mm.

divaricate, straight or slightly recurved, 5–15 mm.

1.5–3 cm × 0.9–1.2 mm;

ovules 34–50 per ovary;

style 0.5–2.5 mm.

uniseriate, light or yellowish brown, ovoid, 0.6–0.8(–0.9) × 0.4–0.7 mm, minutely reticulate with 400–500 areolae on each side.

= 32.