Flora of North America species comparison

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

erect or ascending, very sparsely 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.

sometimes unifoliolate distally, 3–8.5 cm;

stipules shortly connate-sheathing and scarious at proximal nodes, connate or distinct and herbaceous at distal nodes, 2–8 mm;

leaflets (1 or)5–15, blades linear-oblong, oblanceolate, or filiform, 6–40 mm, apex obtuse to acute, surfaces glabrous or sparsely strigulose abaxially, glabrous adaxially;

terminal leaflet decurrent, not jointed to rachis.

(15–)20–55(–65)-flowered;

axis (3–)5–20(–24) cm in fruit;

bracts 2–6 mm;

bracteoles 0.

12–25-flowered, flowers spreading-declined;

axis 2.5–10 cm in fruit;

bracts 1–3.5 mm;

bracteoles 1 or 2.

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

erect, (6–)8–14 cm.

(1.2–)1.5–9 mm.

2–6 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.

17–23 mm;

calyx 8.5–12 mm, strigulose, tube 7–10 × 3.5–4.7 mm, lobes triangular-subulate, 0.8–2 mm;

corolla white;

keel 12.3–14.8 mm.

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

pendulous, green-stramineous, straight or slightly incurved, linear-ellipsoid, strongly laterally compressed, 25–45 × 3–4 mm, fleshy becoming stiffly papery, glabrous;

stipe 2–6.5 mm.

12–17.

= 22.