Flora of North America species comparison

often erect or ascending, sometimes decumbent, diffuse, or spreading, strigulose or glabrous.

several, decumbent or sprawling to erect, (1–)2–6(–8) cm underground, strigulose.

3–13.5 cm;

stipules connate-sheathing at proximal nodes, connate or distinct at distal nodes, 2.5–10(–12) mm, submembranous becoming scarious, pallid;

leaflets (7–)11–35, blades lanceolate-oblong to oblong, elliptic, or oblanceolate, 5–27(–32) mm, apex usually acute or obtuse, rarely emarginate, surfaces strigulose abaxially, glabrous or glabrate adaxially.

4–16 cm;

stipules strongly decurrent, 3–11 mm, papery at proximal nodes, subherbaceous at distal nodes;

leaflets (5–)11–23, blades ovate to oblong, obovate, or oblanceolate, 6–24 mm, apex obtuse to retuse, surfaces strigose to sparsely so abaxially, strigose or glabrous adaxially.

(15–)25–80-flowered;

axis 3–25 cm in fruit;

bracts (1–)2.5–7 mm;

bracteoles 0–2.

10–30-flowered, flowers ascending to declined;

axis 3–14 cm in fruit;

bracts 2–6 mm;

bracteoles 0–2.

erect, ascending, or incurved, 2.5–13 cm.

incurved-ascending, subhorizontal in fruit, 2.5–13(–24) cm.

1–3.5 mm.

1–3.5 mm.

(6.7–)8–17.5 mm;

calyx obliquely campanulate, gibbous-saccate, 3.5–9.6 mm, sparsely strigose, tube 2.8–5.7(–7) mm, lobes subulate, (0.7–)1–4.5(–6) mm;

corolla ochroleucous, white, whitish, or pink-purple, keel tip often maculate, sometimes purple;

banner recurved through 45° (except 90° in var. nevadensis);

keel 7–13 mm.

(11–)13–17 mm;

calyx short-cylindric, 5.2–7.8 mm, black-pilosulous, tube 4.5–6.5 mm, lobes subulate, 1.2–2.5 mm;

corolla purplish to pink-purple, wing tips pale to white;

keel 10.5–10.8 mm.

stramineous, straight or slightly curved, linear, ellipsoid, or oblong-ellipsoid, dorsiventrally compressed, abaxial face with suture forming prominent ridge flanked by depressed grooves, adaxial face convexly rounded, (5–)6.5–17(–20) × 2–4.5 mm, fleshy becoming thinly leathery or papery, strigulose or glabrous;

stipe 1.4–5.2(–6) mm.

firmly attached to receptacle, falling while still attached to pedicel, ascending to descending (sometimes humistrate), green and red-tinged becoming brownish, incurved 0.5 spiral, narrowly oblong, subterete, laterally compressed when pressed, sides convex, elliptic in cross section, dorsal suture forming a prominent ridge, 15–32 × 4–7(–8) mm, bilocular, thick becoming leathery, strigose to strigulose;

stipe 0.5–2 mm.

5–15.

24–36.