Flora of North America species comparison

prostrate, silvery-pilose.

erect, 1–8 cm underground, strigulose.

1–4 cm;

stipules 2–8 mm, hyaline, densely pilose abaxially;

leaflets usually 3, rarely 5, blades narrowly to broadly oblanceolate or obovate-cuneate, 3–13 mm, apex subacute, surfaces silvery-pilose.

2–13 cm;

stipules distinct throughout, 1–9(–10) mm, stiff-papery at proximal nodes, herbaceous becoming papery at distal nodes;

leaflets (1 or)3–9(or 11), blades linear to narrowly oblanceolate, 2–36 × 0.5–4 mm, apex obtuse to acute, surfaces usually strigose, sometimes glabrous adaxially;

terminal leaflet decurrent distally, not jointed to rachis.

(2 or)3–5-flowered;

axis to 1 cm in fruit;

bracts 1–2.5 mm.

7–40+-flowered, flowers spreading-declined;

axis 3.5–45 cm in fruit;

bracts 0.8–2.5 mm;

bracteoles 0.

0.5–2.5 cm.

erect or incurved-ascending, 6–24 cm.

1–3.5 mm.

1.3–4.5 mm.

5–6.2(–8) mm;

calyx campanulate, 2.4–4.2 mm, densely pilose, tube 2–3 mm, lobes triangular-subulate, 1–1.2 mm;

corolla pink-purple or white, often drying yellowish;

banner recurved through 90°;

keel 4–4.5 mm, apex bluntly deltate.

13–20 mm;

calyx brown, cylindric-gibbous, 5.8–10.3 mm, strigose, tube 5–8 mm, lobes subulate, 0.6–2.5 mm;

corolla ochroleucous to nearly white, concolorous;

banner recurved through 50°;

keel 10.5–14 mm, apex bluntly or sharply deltate.

ascending or recurved, ovoid-ellipsoid, slightly compressed, 3–4.5 × 2 mm, papery, densely silky-strigose or silky-pilose.

pendulous, often brownish, straight or slightly curved, ellipsoid to oblong, dorsiventrally compressed, convex, 22–50 × 3.3–6.2(–7.5) mm, stiffly papery, faces smooth or cross-reticulate, strigose or glabrous;

stipe 3–15 mm.

6–10.

12–26.

= 22.