Flora of North America species comparison

reduced to thick crowns.

single or few and clustered, sprawling to erect, 3–40+ cm underground, densely strigulose or ashen or silvery-canescent.

1.5–14(–15) cm;

stipules (2.5–)4–11 mm, submembranous becoming scarious or papery;

leaflets 1–13(or 15), blades obovate to elliptic, oblanceolate, or orbiculate, 3–20 mm, apex acute to obtuse or retuse, surfaces villous-tomentulose.

sometimes reduced to phyllodia distally, 2–17 cm;

stipules connate-sheathing and subscarious at proximal nodes, mostly connate and herbaceous at distal nodes, 1.5–9 mm;

leaflets (0 or 1)3–13, blades narrowly oblong to filiform, 3–50(–80) mm, apex obtuse to retuse or acute, surfaces strigulose, hairs very slightly spreading;

terminal leaflet continuous with rachis distally, reduced to phyllodia.

2–8-flowered, flowers ascending;

axis 0.2–2.7 cm in fruit;

bracts 3.5–10 mm;

bracteoles 0–2.

2–15(–25)-flowered;

axis 1–8(–15) cm in fruit;

bracts 1–2.5 mm;

bracteoles 0.

0.5–11 cm.

divaricate and incurved, 0.7–7.5 cm.

1.4–5 mm.

0.7–3.1 mm.

14–32 mm;

calyx cylindric or campanulate, 7–20 mm, villous, tube 5–16 mm, lobes subulate to lanceolate, 1–4 mm;

corolla pink-purple;

banner recurved through 40°;

keel 12–26 mm.

6.3–10.8 mm;

calyx campanulate, 3.1–6 mm, strigose, tube 2.1–3.5 mm, lobes subulate, 1–3 mm;

corolla usually dull purplish to pink, rarely whitish;

banner abruptly recurved through 85–90°;

keel 6.4–9.1 mm, apex narrowly triangular, subacute, sometimes beaklike.

ascending (humistrate), brown-stramineous, incurved, obliquely ovoid, obcompressed, (13–)18–28(–36) × 7–13(–17) mm, unilocular, fleshy becoming leathery, sparsely hirtellous to densely villous-tomentose, usually concealing surfaces.

purple-mottled becoming purplish brown, straight or slightly curved, ellipsoid, bladdery-inflated, (10–)15–50 × 5–26 mm, papery, glabrous;

stipe 0–3.3 mm.

27–40(–46).

12–29.