Flora of North America species comparison

reduced to crowns.

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

1.5–13 cm;

stipules 3.5–10 mm, firmly papery;

leaflets (1 or)3 or 5, blades elliptic to lanceolate, 5–35(–47) mm, apex acute to obtuse, surfaces strigose.

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.

1–6-flowered, flowers erect-ascending;

axis 0.2–1.4 cm in fruit;

bracts 1.6–4 mm;

bracteoles 0.

2–15(–25)-flowered;

axis 1–8(–15) cm in fruit;

bracts 1–2.5 mm;

bracteoles 0.

ascending, 0.5–7 cm.

divaricate and incurved, 0.7–7.5 cm.

1.2–4 mm.

0.7–3.1 mm.

(18.5–)20–28 mm;

calyx cylindric, 12–16 mm, strigose-pilose, tube 9.5–13.5 mm, lobes subulate, 1.5–4 mm;

corolla pink-purple;

banner recurved through 40°;

keel (18–)19–22.7 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 to spreading (humistrate), green or purplish, incurved, obliquely ovoid, dorsiventrally compressed, 15–36 × 8–17 mm, unilocular, thickly succulent becoming alveolate-spongy, spongy-thickened cellular tissue 1.5–2 mm thick, hirsutulous to villous-hirsute, hairs spreading, 0.6–2 mm.

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.

33–53.

12–29.