Flora of North America species comparison

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

ascending (and somewhat sprawling from the root-crown) to erect, strigulose.

(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.

3.2–22 cm;

stipules 3–9 mm, membranous;

leaflets (1 or)3–13, blades elliptic to rhombic, 7–23(–45) mm, apex acute to mucronate, surfaces sparsely strigose or glabrous.

(15–)20–55(–65)-flowered;

axis (3–)5–20(–24) cm in fruit;

bracts 2–6 mm;

bracteoles 0.

7–20-flowered, flowers spreading;

axis 1–3 cm in fruit;

bracts 2–4.5 mm;

bracteoles 0.

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

incurved, 1.4–10 cm.

(1.2–)1.5–9 mm.

0.8–2.5 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.

17–19 mm;

calyx 6.7–10 mm, strigulose, tube 5.5–6.3 mm, lobes subulate, 1.8–3.1 mm;

corolla white, concolorous, drying white or ochroleucous;

banner recurved through 40–50°;

keel 13 mm, apex blunt.

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

spreading-declined, pallid-stramineous or brownish, straight or slightly incurved subcylindroid, inflated, 25–32(–38) × 10–15 mm, leathery, strigose;

unilocular;

sessile or subsessile.

38–44.

= 22.