Flora of North America species comparison

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

diffuse, prostrate, ascending, or erect, sparsely 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–)4–17 cm;

stipules connate-sheathing at proximal nodes, mostly connate at distal nodes, 3–14 mm, membranous; short-petiolate or subsessile;

leaflets (21 or)23–43, blades obovate, obovate-cuneate, oblong-obovate, narrowly to broadly oblong, or oblanceolate, (2–)3.5–25(–28) mm, apex retuse, emarginate, obtuse, or obtuse and apiculate, surfaces villosulous, sometimes sparsely so or glabrous adaxially, rarely puberulent.

(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.

(15–)20–90(–125)-flowered, flowers nodding;

axis 3–19 cm in fruit;

bracts 1.5–4(–5) mm;

bracteoles 0–2.

erect or divaricate, 3–9(–12) cm.

erect or incurved-ascending, (4–)6–15(–18) cm.

1–2.3 mm.

0.8–5.5(–7) 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.

(10–)11–15 mm;

calyx campanulate or ovoid-campanulate, gibbous abaxially, (5.5–)5.8–8.2(–9) mm, sparsely to densely villosulous or loosely strigulose, tube (4–)4.3–5.7(–5.9) mm, lobes broadly subulate or triangular, (1.1–)1.3–3(–3.1) mm;

corolla greenish white or cream;

keel (9.7–)10.5–14 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.

loosely spreading, ascending, or declined, pale green or minutely purple-dotted, becoming stramineous, obliquely ovoid, ovoid-ellipsoid, or semi-ovoid, semi-obovoid, or semi ovoid-ellipsoid, bladdery-inflated, (20–)25–55(–60) × 15–27 mm, thin becoming papery, lustrous, glabrous or villosulous;

sessile.

32–42.

(14–)16–38.

= 22.