Flora of North America species comparison

profusely branched; glabrate or puberulent (bark corky, twigs smooth).

petiole 1–3 cm;

leaflets 3, blade oblong-elliptic, 1.5–4.5 × 0.4–1.3 cm, margins serrate, apex acuminate to obtuse, surfaces glaucous.

1–3 cm (6–40 cm in fruit);

bracts unifoliate, obovate to spatulate, 2–15 mm.

7–15 mm (thickened in fruit).

sepals persistent, connate ca. 1/2 of length, green, lanceolate, 4–7 × 2.2–4 mm, margins entire, glabrous;

petals yellow, ovate-elliptic, 8–14 × 4.2–5 mm, (apex acute);

stamens yellow, 15–25 mm;

anthers 2–2.5 mm;

gynophore (reflexed), 10–20 mm in fruit;

ovary 3–6 mm (often aborting in bud);

style 0.9–1.2 mm.

(tardily dehiscent), usually inflated,(valves sometimes 3), 20–30 × 6–12 mm, smooth.

5–25, dark brown, obovoid, 6–7 × 5–6 mm, smooth.