Flora of North America species comparison

usually prostrate or twining, rarely erect, strigose or hirsute, hairs tawny or silvery.

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

usually trifoliolate, proximalmost sometimes unifoliolate;

stipules persistent, ovate or ovate-lanceolate, 3–10 × 1.5–3 mm, apex acute or long-acuminate;

petiole 10–65 mm, hirsute;

leaflet blades ovate to ovate-rhombic and orbiculate, or obovate to obovate-elliptic and elliptic, 20–60 × 10–70 mm, leathery, gland-dotted, base obtuse to rounded or subcordate, apex usually acute, obtuse, or rounded, rarely retuse, surfaces hirtellous or strigulose to loosely strigose abaxially, glabrous or strigose adaxially.

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, 1–4 cm.

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

2–5 mm.

1–3 mm.

calyx 9–12 mm, hirsute or hirtellous, tube 1–2 mm, lobes widely lanceolate or ovate-lanceolate, laterals 6–10 mm, adaxials 3–5 mm;

corolla deep yellow or orange-yellow;

banner broadly-obovate, 8–10.5 × 5–6 mm, emarginate, glabrous or puberulent, with a pair of internal callosities;

wings oblong, 7–8 × 2–3 mm, glabrous;

keel 7–8 × 2–3 mm, glabrous;

stamens 7–9 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, 14–20 × 6–9 mm, gland-dotted, puberulent and hirsute, hairs intermixed.

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

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

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

= 22.

= 22.