Flora of North America species comparison

ascending or pendent, clustered, 50–300 cm, branched throughout, young branches densely covered with appressed to spreading whitish to yellowish hairs.

gradually smaller distally;

stipules subulate to narrowly deltate, 4–8 mm;

petiole 10–50 mm, longer than rachis;

leaflet blades narrowly elliptic to elliptic, ovate, or oblong, apex acute or obtuse, apiculate, surfaces densely appressed-pubescent abaxially, glabrous or sparsely to densely puberulent or pubescent adaxially;

terminal blade 20–90 × 10–50 mm, length 1.5–2.2 times width.

5–20-flowered, single or compound and appearing terminal and paniculate, flowers chasmogamous only.

longer than subtending leaves.

1.5–5 mm;

bracteoles shorter than calyx tube.

12–16 mm;

calyx 3.5–6 mm, tube 1.6–1.9 mm;

lobes 4, lateral narrowly ovate-triangular, 2.2–3.6 mm, apices acute to shortly acuminate, not spine-tipped;

corolla usually reddish purple, rarely white, banner with darker marks at throat on adaxial surface;

wings 8.5–10.5 mm;

keel 10.5–15 mm.

body exserted from calyx, elliptic, 5–14 × 4–6 mm, slightly to densely white appressed-pilose, sometimes glabrescent;

stipe 1–2 mm.

= 22.