Flora of North America species comparison

ascending, decumbent, or sprawling, silky-strigose, villous, or villous-tomentose.

erect or ascending, fistulose, glabrous.

(1–)2–7(–10) cm;

stipules clasping with margins touching but distinct or shortly connate at proximal nodes, distinct at distal nodes, (1–)2–7(–11) mm, often veined, semileathery;

leaflet blades linear, lanceolate, oblong, elliptic, or elliptic-oblanceolate, 3–33(–35) mm, apex acute, subacute, or obtuse, surfaces glabrous, glabrate, or pubescent.

8–18 cm;

stipules distinct, (2–)3.5–7.5 mm, submembranous;

leaflets (19 or)21–29, blades ovate-oblong to lanceolate or lanceolate-elliptic, (4–)8–21 mm, apex obtuse or truncate, usually apiculate, surfaces sparsely strigose.

densely or loosely 6–40-flowered;

axis 1.5–15 cm in fruit, elongating little after flowering;

bracts 1.2–5 mm;

bracteoles 0.

(13–)18–25-flowered, flowers spreading or weakly ascending;

axis (5–)9–16 cm in fruit;

bracts 1.5–2.5 mm;

bracteoles (0–)2.

usually erect, rarely humistrate in fruit, (2–)2.5–15 cm, equal to or longer than subtending leaf, together with racemes usually shorter than stems.

erect or incurved-ascending, (6–)12–20 cm.

0.8–2.2 mm 1.2–3.5 mm in fruit.

0.9–3.5 mm.

7–13.8(–14.5) mm;

calyx 3.7–6.4 mm, villous or strigulose, tube 2.4–5 mm, lobes subulate, (1–)1.1–4 mm;

corolla white to purplish or creamy white;

wing apex bidentate;

keel (6.1–)6.7–9.6 mm, shorter than wings.

(9.5–)12–15 mm;

calyx purplish, campanulate, (4.7–)5–7.2 mm, sparsely strigulose, tube (2.7–)3–4.5 mm, lobes subulate, 1.8–2.7 mm;

corolla whitish, drying ochroleucous;

banner recurved through 45°, 12–15 mm;

keel 8–10.5 mm, apex blunt and narrowly deltate.

green, often with red or purple, becoming stramineous, ± straight or slightly curved abaxially, convex adaxially, not sulcate, obliquely ellipsoid, semi-ellipsoid, or narrowly oblong, laterally compressed, 10–30 × 3–9(–11) mm, papery, translucent, usually glabrous, sometimes strigose, hyaline septum 0–0.6 mm wide;

stipe 2.5–8[–10] mm.

ascending, pale green and purplish-tinged becoming stramineous, straight or slightly incurved, obliquely semi ovoid-ellipsoid, bladdery-inflated, somewhat obcompressed, (15–)20–28 × (8–)10–15(–18) mm, beak prominent, papery, sparsely strigulose.

8–16.

29–40.