Flora of North America species comparison

erect or decumbent to ascending, ± strongly flexuose aboveground, (0–)2–6 cm underground, strigulose.

erect, ascending, or trailing, strigulose to villosulous.

30–100 cm;

stipules (1–)2–5 mm, membranous at proximal nodes, herbaceous at distal nodes;

leaflets (5–)9–15, blades elliptic-oblong, oblanceolate, or linear, 3–25 mm, apex usually obtuse or retuse, rarely subacute, surfaces strigulose.

(2.5–)5–16(–20) cm;

stipules usually distinct, rarely connate at proximal nodes, (2–)3–7 mm, herbaceous;

leaflets (15–)21–35(–39), blades ovate- or lanceolate-oblong, oblong-elliptic or -oblanceolate, (2–)5–20(–25) mm, apex emarginate, surfaces pubescent, sometimes glabrous adaxially.

(5–)8–20(–26)-flowered, flowers ascending becoming declined;

axis (1.5–)3–12(–17) cm in fruit, elongating;

bracts 2–3.5(–5) mm;

bracteoles 0–2.

(10–)15–50-flowered, flowers spreading becoming nodding;

axis (2–)3.5–13(–16) cm in fruit;

bracts 1–3.3 mm;

bracteoles 2.

erect or divaricate, 3–9(–12) cm.

erect or incurved-ascending, (4–)6–26(–30) cm.

1–2.3 mm.

1.2–5.2 mm.

(12–)13.5–18 mm;

calyx pallid or purplish, cylindric or deeply campanulate, (5.8–)7.5–9 mm, strigulose, tube (4.6–)5.8–7.5 mm, lobes subulate or triangular-subulate, 1.2–1.8 mm;

corolla usually pink-purple and wing tips white, rarely white throughout;

keel 10.6–13.3 mm.

11.3–19 mm;

calyx pallid, obliquely turbinate, 5–8.7 mm, strigulose or strigulose-villosulous, tube 3.6–5.4 mm, lobes subulate, (0.9–)1.1–3.7 mm;

corolla greenish white or cream, rarely veined pale pink or purple;

banner recurved through 40–45°;

keel 8.6–13.3 mm.

promptly deciduous, deflexed, red- or brownish-mottled becoming stramineous or brownish, usually ± sigmoid-arcuate, rarely straight, lanceoloid-ellipsoid or oblong-ellipsoid, obcompressed, 20–55 × (5–)6–10 mm, fleshy becoming stiffly leathery, strigulose.

pendulous, pale green or purplish-tinged becoming stramineous, straight or decurved, linear-ellipsoid, fusiform-ellipsoid, semi-ovoid, semi-ellipsoid, ovoid, or oblanceoloid, ± greatly inflated, often bladdery, laterally compressed when narrow, (13–)15–40(–45) × 4.8–18(–21) mm, thin becoming papery, lustrous, glabrous or strigulose;

stipe filiform, (6–)6.5–17 mm, flexible, strigulose-villosulous.

32–42.

(10–)12–30.