Flora of North America species comparison

decumbent to ascending or erect, villosulous.

erect or ascending, 2–10 cm underground, strigulose.

3–9(–10.5) cm;

stipules distinct, 2–5(–7) mm, papery at proximal nodes, herbaceous at distal nodes;

leaflets (9 or)11–21(–25), blades oblong-oblanceolate, narrowly obovate-cuneate, or linear-elliptic, 4–20(–22) mm, apex truncate-retuse to obtuse or retuse, surfaces villosulous abaxially, strigose to glabrescent or glabrous adaxially.

4–9(–11) cm;

stipules distinct throughout, 1–5 mm, papery-scarious at proximal nodes, herbaceous at distal nodes;

leaflets 11–21, blades linear or linear-elliptic to subfiliform, 8–30 mm, apex acute, obtuse, or truncate, surfaces strigulose abaxially, glabrate adaxially;

terminal leaflet usually continuous with rachis.

(10–)15–40(–55)-flowered;

axis (3–)4–12(–18) cm in fruit;

bracts 1.5–3.5 mm;

bracteoles 2.

(5–)15–45-flowered, flowers declined and secund;

axis 2–16 cm in fruit;

bracts 1–2 mm;

bracteoles 0.

erect or incurved-ascending, (4–)5–16 cm.

arcuate-erect, (3.5–)6–12(–15) cm.

0.8–2.8 mm.

2.3–7 mm.

(10.5–)12–17.2 mm;

calyx campanulate to broadly cylindric, gibbous-saccate, 7–12.3 mm, strigose, tube 5.8–9.4 mm, lobes lanceolate to triangular-subulate or triangular, (0.8–)1–2.7(–3.5) mm;

corolla cream to pale lemon yellow;

banner usually sigmoidally arched and apex very abruptly and strongly folded over calyx to more than 100°, sometimes recurved through 50°;

keel 8.7–13.2 mm.

13–17 mm;

calyx purplish or whitish, cylindric, 5.5–7 mm, strigose, tube 5–6.6 mm, lobes triangular-subulate, 0.5–1.1 mm;

corolla pale lemon yellow, concolorous;

banner recurved through 35°;

keel (9.5–)10–11.3 mm, apex bluntly or sharply deltate.

pendulous, stramineous, straight or gently incurved, linear-oblong or obliquely ovoid-oblong, laterally compressed, 7–25 × 2.3–4.2 mm, somewhat fleshy becoming leathery, usually villosulous or strigulose, rarely glabrous;

stipe (3.5–)5–15 mm.

pendulous, green or reddish becoming stramineous, straight or slightly curved, linear-oblong to lanceoloid or narrowly ellipsoid, strongly compressed, flattened laterally, (14–)20–33 × (3.5–)4–6 mm, papery, ± translucent in age, strigulose;

stipe 8–15 mm.

(7 or)8–18.

11–17.