Flora of North America species comparison

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

ascending and radiating, to 6(–9) cm underground, 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.

(4–)6–18 cm;

stipules distinct throughout, 2–7(–9) mm, membranous or subherbaceous, strigulose abaxially; petiolate;

leaflets (11–)15–25(–29), blades elliptic, narrowly ovate-lanceolate, rhombic-elliptic, or oblong-obovate, 5–20 mm, apex obtuse, subacute, or retuse, surfaces cinereous-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.

(10–)15–30-flowered, flowers ascending to spreading;

axis (2.5–)3.5–11.5 cm in fruit;

bracts 2.5–6 mm;

bracteoles 2.

narrowly ascending or incurved, 0.2–4 cm.

erect or ascending, 3.5–10 cm.

0.7–3.2 mm.

1.3–3.4 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.

16–23 mm;

calyx purplish or reddish, cylindro-campanulate, 10.4–14.7 mm, finely strigulose, tube 7.3–10 mm, lobes subulate or lanceolate, (2.6–)3–5 mm;

corolla bright pink-purple, keel maculate;

keel 15.4–18.1 mm.

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.

pale green or suffused purple becoming stramineous suffused with brown-purple, usually straight, rarely slightly incurved, broadly and plumply oblong-cylindroid, oblong-ellipsoid, or more narrowly cylindro- or clavate-ellipsoid, terete or slightly laterally or dorsiventrally compressed, 25–45(–50) × (8–)10–21 mm, bilocular, fleshy and succulent, becoming thick and plump, mesocarp at least 1.5 mm, glabrous.

3–9.

(41–)45–66.

= 16, 24.

= 24.