Flora of North America species comparison

ascending or erect, tomentulose to hirtellous, hairs silvery to tawny.

usually trifoliolate, proximalmost sometimes unifoliolate;

stipules caducous or persistent, lanceolate to linear-lanceolate, 3–12 × 1.5–3.5 mm, apex acuminate;

petiole 5–35 mm, densely canescent-tomentose abaxially, villous adaxially;

leaflet blades oblong or ovate to rhombic-ovate, elliptic, or obovate, 20–50(–60) × 10–40(–50) mm, leathery, gland-dotted, base obtuse, subcordate, or broadly cuneate, apex acute, obtuse, or rounded, minutely apiculate, surfaces puberulent, strigulose, or villosulous.

racemes, shorter than leaves, axillary ones 1.5–4(–5) cm, terminal ones 6.5–23 cm.

1–3 mm.

calyx 6–9 mm, hirtellous, tube 1.5–2.5 mm, lobes narrowly lanceolate to linear-subulate, laterals 4.5–7.5 mm, lengths 3+ times tube, adaxials 2–2.5 mm;

corolla yellow or bright yellow;

banner orbiculate, 6–9 × 5–7 mm, emarginate, glabrous;

wings oblong, 6–8 × 1.5–2.5 mm, glabrous;

keel 5–7.5 × 2–2.5 mm, glabrous;

stamens 5.5–7.5 mm.

ovoid-oblong, compressed, 15–20 × 5–7 mm, hirtellous and puberulent, hairs intermixed.

brown, black, or mottled, subglobose, compressed, 3–4 × 3–4 mm.

= 22.