Flora of North America species comparison

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

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.

1–3.5(–4) cm;

stipules 3–11 mm, membranous or papery;

leaflets 3–9, blades ovate to obovate or elliptic, (2–)3–7 mm, apex acute to obtuse, surfaces pilose-tomentose, hairs gray or silvery.

(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.

1- or 2-flowered, flowers erect-ascending;

axis 0.2–0.5 cm in fruit;

bracts 3 mm.

narrowly ascending or incurved, 0.2–4 cm.

to 1 cm.

0.7–3.2 mm.

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.

24–25 mm;

calyx cylindric, 12.5–15 mm, villous-tomentose, tube 9.5–11 mm, lobes subulate, 3–4 mm;

corolla pale lilac, fading ochroleucous, tips purplish;

banner only slightly recurved.

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.

ascending (humistrate), strongly curved or lunate, obliquely lanceoloid-ovoid, obcompressed, 18 × 10 mm, unilocular, leathery, tomentulose-pilose.

3–9.

32.

= 16, 24.