Flora of North America species comparison

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

essentially absent.

(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.

4–21.5 cm;

stipules 2.5–8 mm, papery;

leaflets (5–)9–15(or 17), blades broadly obovate to obcordate, 6–16 mm, apex emarginate, surfaces loosely pilose abaxially, glabrous adaxially.

densely or loosely 6–40-flowered;

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

bracts 1.2–5 mm;

bracteoles 0.

4–16-flowered, flowers ascending to spreading;

axis 0.4–6.5 cm in fruit;

bracts 4+ mm.

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.

procumbent, 2–9 cm, shorter than leaves.

0.8–2.2 mm 1.2–3.5 mm in fruit.

1–2 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.

18–23.5 mm;

calyx cylindric, 10.5–12.5 mm, sparsely white-pilose, tube 8–9.5 mm, lobes subulate, 2–3.5 mm;

corolla pink-purple;

keel 16.5–18.5 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.

reclined (humistrate), green or purplish becoming stramineous or brownish, lunately incurved, ellipsoid, 3-sided compressed, 2.5–5.5 × 6–9 mm, bilocular, leathery, glabrous.

8–16.

30–34.

= 22.