Flora of North America species comparison

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

many, decumbent, glabrous or sparsely strigose.

(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.

3–7 cm;

stipules 2.5–5 mm, membranous or membranous-margined;

leaflets 13–25(–29), blades oblanceolate or obovate-cuneate, 6–16 mm, apex retuse or apiculate, surfaces glabrous (except midrib sparsely strigose) abaxially, glabrous adaxially.

(15–)20–55(–65)-flowered;

axis (3–)5–20(–24) cm in fruit;

bracts 2–6 mm;

bracteoles 0.

5–7-flowered, flowers ascending;

axis 1.5–2 cm in fruit;

bracts 2–4 mm;

bracteoles 2.

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

reclined in fruit, 2–6 cm.

(1.2–)1.5–9 mm.

1.5–5 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.

16–23 mm;

calyx short-cylindric, 9.5–11 mm, strigulose, tube 5.5–6.5 mm, lobes linear-subulate, 3.5–4.5 mm;

corolla whitish;

keel 12–13 mm.

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

ascending (humistrate), stramineous, slightly incurved, obliquely oblong-ovoid, obcompressed, 20–40 × (9–)11–19 mm, bilocular, fleshy becoming woody, glabrous;

septum 3–4 mm wide;

stipe 5–20 mm.

26–28.

= 22.