Flora of North America species comparison

several, erect or ascending, proximalmost internodes very short, hirsute-villosulous.

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

4–15 cm;

stipules obscuring proximal internodes, 7–17 mm, whitish-papery at proximal nodes, thinly herbaceous at distal nodes;

leaflets (7–)11–19(or 21), blades obovate, obovate-cuneate, or elliptic, 5–20 mm, apex obtuse, retuse, or subacute, surfaces hirsute-villosulous, sometimes glabrescent adaxially.

(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.

9–35-flowered, flowers declined;

axis 2–10(–15) cm in fruit;

bracts 4–9 mm;

bracteoles 2.

densely or loosely 6–40-flowered;

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

bracts 1.2–5 mm;

bracteoles 0.

erect or incurved-ascending, sometimes reclined in fruit, 4–11 cm.

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.

0.7–3 mm.

0.8–2.2 mm 1.2–3.5 mm in fruit.

12–15 mm;

calyx cylindric, 8.6–13(–14) mm, hirtellous, tube 7–9 mm, lobes subulate, 1.6–4(–5) mm;

corolla reddish purple;

keel 12.3–14.5(–16) 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.

reflexed, green and suffused or dotted red, becoming stramineous, shallowly to deeply incurved, narrowly oblong or oblong-ellipsoid, 3-sided compressed, grooved dorsally, 18–38 × 4.5–6 mm, bilocular, fleshy becoming stiffly papery, shaggy-hirsute, hairs lustrous, spreading, 1–3 mm;

stipe 1–3 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.

16–24.

8–16.