Flora of North America species comparison

erect or ascending, strigulose.

prostrate, 0–15(–25) cm, internodes to 2(–2.5) cm, strigulose, pilosulous, or villosulous.

(3.5–)5–12 cm;

stipules 0.8–2 mm;

leaflets 9–15, blades obovate, oblong-obovate, or oblong-elliptic, 2.5–7 mm, apex obtuse or emarginate, surfaces glabrous.

4–24 cm;

stipules sometimes obscurely connate at proximal nodes, 2–15 mm, submembranous becoming papery-scarious;

leaflets 11–27(–31), blades oblanceolate, obovate, obovate-cuneate, rhombic, rhombic-ovate, or rhombic-elliptic, rarely suborbiculate, 2–27 mm, apex usually obtuse or acute, rarely emarginate, surfaces usually pubescent, sometimes glabrescent or glabrous adaxially.

2–5-flowered, flowers ascending;

axis 2–4 cm in fruit;

bracts 1.1–2.2 mm;

bracteoles 0–2.

loosely (9 or)10–25(–35)-flowered, flowers ascending;

axis (1.5–)2–20 cm in fruit;

bracts 1.5–11 mm;

bracteoles usually 0(–2).

(3.5–)5–11 cm.

incurved-ascending or erect, 4–40 cm.

2.4–6 mm.

0.6–3.4 mm.

12–14 mm;

calyx campanulate, 6.3–7.5 mm, strigulose, tube 4–4.5 mm, lobes lanceolate-subulate, 1.8–3 mm;

corolla reddish purple, drying bluish;

banner recurved through 45°;

keel 9.4–14.4 mm, apex sharply deltate.

11.8–24 mm;

calyx cylindric to deeply campanulate, (5–)6.4–14 mm, loosely strigulose, pilosulous, or villous, tube (3.5–)4.5–10.2 mm, lobes subulate or triangular-subulate, 1.2–3.8 mm;

corolla usually pink-purple to dull lilac, rarely white or nearly so;

banner recurved through 45°;

keel 10.2–20.1 mm.

persistent and dehiscent by gaping beak, ascending, green, or suffused or speckled with purple, becoming brownish stramineous, lunate, linear-oblanceoloid, 3-sided compressed, 15–21 × 2.8–3.8 mm, ± bilocular, fleshy becoming thinly or stiffly leathery, sparsely strigulose;

septum 1–1.3 mm wide;

stipe 1–1.5 mm.

ascending, green or purplish becoming stramineous or brownish, lunately incurved or straight proximally and only beak incurved, obliquely ovoid-acuminate, lanceoloid-, oblong-, or ovoid-ellipsoid, strongly obcompressed, 13–34 × 5–10(–12) mm, ± unilocular, valves less than 1 mm thick, thinly to thickly fleshy becoming thinly leathery, stiffly leathery, or subligneous, usually densely to sparsely strigulose or pilosulous, rarely glabrous.

16–19.

24–36.