Flora of North America species comparison

erect or stiffly ascending, stout, with 5–10 well-developed internodes, pilose and tomentulose.

prostrate to ascending, internodes well developed, sparsely strigulose-villosulous.

(9–)13–35 cm;

stipules distinct 6–17 mm, herbaceous;

leaflet blades broadly to narrowly elliptic, ovate, oblong-elliptic, or rhombic-elliptic, (7–)10–55 mm, apex acute or abruptly short-acuminate, often callous-apiculate, surfaces pilose and tomentulose.

4–6 cm;

stipules connate and scarious, 1.5–4 mm;

leaflets (9 or)11–23, blades oblong-oblanceolate, -elliptic, or narrowly obovate, 1–6 mm, apex obtuse, surfaces strigulose-villosulous abaxially, glabrous adaxially.

(15–)20–55(–65)-flowered;

axis (3–)5–20(–24) cm in fruit;

bracts 2–6 mm;

bracteoles 0.

5–12-flowered;

axis 1.5–4 cm in fruit;

bracts 0.6–1.5 mm;

bracteoles 0.

erect, (8–)10–27 cm, together with racemes shorter than stems.

ascending, 0.5–2.5 cm.

(1.2–)1.5–9 mm.

0.8–1.3 mm.

(14.4–)15.5–22 mm;

calyx (7.8–)10–14.7 mm, silky-pilose or tomentulose, tube (6–)7–8.7 mm, lobes lanceolate-acuminate or linear-lanceolate, 3–6.5 mm;

corolla immaculate;

keel (11.5–)12–15.1 mm.

4.5–5.5 mm;

calyx 2.8–4 mm, strigulose, tube 1.5–2 mm, lobes subulate, 1–1.8 mm;

corolla whitish, immaculate;

banner recurved through 90°;

keel 3.3–3.9 mm.

stiffly erect, becoming brownish stramineous then blackish, 15–25 × 8–13 mm, fleshy becoming leathery, glabrous.

pendulous, stramineous, lunate, oblong-ellipsoid, 3-sided compressed, 6–10.5 × 2–3 mm, thin becoming papery-membranous, finely strigulose;

septum 1 mm wide;

stipe 0.5–2.5 mm.

6–11.

= 22.