Flora of North America species comparison

erect, suberect, decumbent, procumbent, or twining, viscid, hirsute, hairs yellowish.

trailing or twining, gland-dotted, soft-hirsute, hairs silvery.

trifoliolate;

stipules persistent, linear to narrowly lanceolate, 3–9 × 0.5–1.5 mm, apex acute to acuminate, surfaces hirsute;

petiole 15–55 mm, hirsute;

leaflet blades lanceolate to obovate-oblong or ovate-deltate, 15–70 × 10–60 mm, membranous or leathery, gland-dotted, often viscid, base obtuse to rounded or truncate, margins ciliate, slightly revolute, apex acute to acuminate, surfaces strongly reticulate and sparsely to densely hirsute abaxially, strigulose to strigose adaxially.

trifoliolate;

stipules persistent, narrowly lanceolate to lanceolate, 3–4 × 0.5–1.5 mm, acuminate, surfaces hirtellous;

petiole 10–60 mm, hirsute;

leaflet blades ovate, 20–60 × 15–45 mm, membranous, gland-dotted abaxially, base obtuse, rounded, or truncate, apex acute or long-acuminate, surfaces hirsute abaxially, glabrous or hirsute adaxially.

racemes, equal to or longer than leaves, 2.5–20 cm.

racemes, longer than leaves, 1–6 cm.

1–3 mm.

filiform, 2–4 mm, viscid.

calyx 4–7 mm, hirsute, tube 1.5–2 mm, lobes lanceolate, laterals 2–2.5 mm, lengths to 2.5 times tube, adaxials 1.5–3 mm;

corolla yellow, striped reddish brown or purple;

banner widely ovate to obovate, 7–10 × 4–5 mm, slightly apiculate, hirtellous and gland-dotted;

wings narrowly oblong, 6.5–9 × 1.5–2 mm, gland-dotted, puberulent apically;

keel 6.5–9 × 2–3 mm, glabrous;

stamens 6–9 mm.

calyx 3.5–5 mm, hirsute-viscid, tube 2.5–5 mm, lobes broadly lanceolate, laterals 1.5–2 mm, lengths to 2.5 times tube, adaxials 0.5–1 mm;

corolla yellow;

banner obovate, 5–8 × 3–4.5 mm, marginate, puberulent, gland-dotted;

wings oblong, 4–5 × 1–1.5 mm, glabrous;

keel 4.5–5 × 2-2.5 mm, glabrous;

stamens 3.5–5 mm.

oblong-ovoid, compressed, 16–26 × 6–8 mm, often viscid, long-hirsute to puberulent, hairs intermixed, glabrescent.

brown, acinaciform, compressed, 25–40 × 5–9 mm, tapered toward base, densely puberulent, hairs long, scattered.

greenish brown or mottled, widely ovoid to subglobose, compressed, 4–5 × 3–4 mm.

brown to red, reniform, barely compressed, 4–6 × 3–3.5 mm.