Flora of North America species comparison

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

usually trailing or twining, rarely suberect, hirsute, hairs 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.

usually trifoliolate, proximalmost sometimes unifoliolate;

stipules deciduous, subulate-lanceolate, 2.5–7.5 × 2–2.5 mm, apex acuminate;

petiole 20–60 mm, hirsute;

leaflet blades oval to ovate-rhombic or orbiculate, 30–80 × 10–60 mm, leathery, gland-dotted abaxially, base obtuse or subcordate, apex obtuse, acute, or abruptly acuminate, often mucronate, surfaces villous abaxially, strigose adaxially.

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

racemes, longer than leaves, 5–20 cm.

1–3 mm.

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.

calyx 8–15 mm, hirsute, tube 2–3 mm, lobes lanceolate, laterals 7–10 mm, lengths 3+ times tube, adaxials 4 mm;

corolla yellow;

banner obovate, 9.5–14 × 6–7 mm, emarginate, hirtellous, gland-dotted;

wings oblong, 8.5–13 × 2–2.5 mm, glabrous;

keel 8.5–13 × 3–4 mm, glabrous;

stamens 8–12 mm.

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

ovoid-oblong, compressed, 15–20 × 7–9 mm, villous and puberulent, hairs intermixed.

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

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

= 22.

= 22.