Flora of North America species comparison

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

usually reduced to sessile crowns, rarely to 2.5 cm, internodes concealed by stipules, sometimes with thatch of persistent leaf rachises, hairs silvery.

(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.

(4–)6–21 cm;

stipules (3–)5–12 mm, thinly herbaceous becoming papery;

leaflets 7–17(or 19), blades usually obovate, rhombic-obovate, elliptic-ovate, rarely flabellate, 5–20(–25) mm, apex obtuse or subacute, surfaces 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.

loosely (5–)7–16-flowered;

axis 1–4(–6) cm in fruit;

bracts 4–10 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.

2–15 cm.

0.8–2.2 mm 1.2–3.5 mm in fruit.

1.6–3.4 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.

(16–)19–22 mm;

calyx cylindric or deeply campanulate, (9.4–)11–14.7 mm, villous (not silvery), tube (6.5–)7.6–9.8 mm, lobes lanceolate-subulate, 2.9–5.6 mm;

corolla pink-purple;

banner recurved through 40°;

keel (13–)15.5–17.2 mm.

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 (humistrate), brown or stramineous then blackish, ± straight in proximal 1/2, obliquely ovoid or ellipsoid, obcompressed, (20–)25–45 × (8–)9–18 mm, unilocular, fleshy becoming woody or very stiffly leathery, densely strigulose.

8–16.

33–54(–66).