Flora of North America species comparison

usually erect or ascending, sometimes decumbent, rarely prostrate, usually sparsely strigulose, sometimes pilosulous.

decumbent or prostrate with ascending tips, silvery-canescent or silvery- to gray-strigulose.

2–9 cm;

stipules connate-sheathing and papery at proximal nodes, connate or distinct and herbaceous or submembranous at distal nodes, usually black or blackish when dry, 1.5–7 mm;

leaflets 11–21, blades narrowly oblong to elliptic, linear, oblanceolate, or obovate, 3–24 mm, apex acute to obtuse, mucronate, or emarginate, surfaces sparsely strigose abaxially, glabrous adaxially.

2–8(–10) cm;

stipules 2–4 mm, submembranous becoming papery;

leaflets (5–)9–15(or 17), blades linear, linear-oblong, linear-elliptic, narrowly lanceolate, or oval, (1.5–)3–17(–21) mm, apex obtuse to apiculate or acute, surfaces strigulose.

(1–)3–23-flowered, often paired in leaf axils, flowers ascending;

axis 0.5–11 cm in fruit;

bracts 0.5–2.7 mm;

bracteoles 0–2.

(7–)10–30-flowered, flowers ascending;

axis (1.5–)2.5–10 cm in fruit;

bracts 0.8–2(–3) mm;

bracteoles 0–2.

narrowly ascending or incurved, 0.2–4 cm.

erect or divaricate and incurved, (1.5–)2.5–10(–15) cm.

0.7–3.2 mm.

0.5–2.2 mm.

6–9(–11) mm;

calyx 2.6–5.2 mm, strigose, tube 2–2.7 mm, lobes subulate, 0.7–2.5 mm;

corolla usually white to ochroleucous, sometimes pink-purple;

banner recurved through 40°;

keel 4.3–5.7(–6.5) mm.

(8.7–)9–12 mm;

calyx (4.5–)5–7 mm, strigulose, tube 3.3–4.1 mm, lobes broadly to slenderly subulate, (1.2–)1.4–3 mm;

corolla pink-purple, wing tips pale or white and ± suffused with greenish yellow, keel maculate;

banner recurved through 50°;

keel 8.2–10.4 mm, apex narrowly triangular, acute, beaklike.

pendulous, green, often brown- or red-mottled, becoming brown or black, straight or curved, ellipsoid to oblong, laterally flattened, 7–16 × 2.5–4.5 mm, papery, usually glabrous, sometimes strigose;

stipe 0.6–6 mm.

erect or ascending, straight or gently incurved, linear-oblong or linear, obtusely 3-sided compressed, 15–30 × (2.2–)2.5–4.5 mm, thin becoming papery, strigulose.

3–9.

14–22.

= 16, 24.

= 16, 26.