Flora of North America species comparison

glabrous or glabrate (sometimes smooth when dry).

petiole 0.2–3.1 cm;

leaflets 3, green, blade ovate or obovate, (0.4–)1–4.9 × 0.4–2 cm, 1.5–4(–5.5) times as long as wide, margins entire, apex acute to rounded.

1–1.5 cm (2–3 cm in fruit).

sepals green, lanceolate, 0.4–1.7 × 0.2–0.7 mm, more than 1.75 times as long as wide, margins entire, glabrous;

petals yellow, oblong, 1.4–4.6 × 0.5–1.8 mm;

stamens yellow, 2–6 mm;

anthers 0.5–1.7 mm;

gynophore (reflexed in fruit), 2–12 mm in fruit, usually shorter than pedicel.

0.5 × 0.3 mm.

1.2–3.3 × 1 mm.

= 40.