Flora of North America species comparison

0–8 cm.

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

4–16 cm;

leaflets 11–27(–31), blades mostly flat, usually obovate-cuneate, oblanceolate, or rhombic-elliptic, rarely suborbiculate, (3–)4–17 mm, apex obtuse, acute, or emarginate.

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.

10–25(–35)-flowered;

axis (1.5–)2–8(–11) cm in fruit.

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).

(4–)5–15(–21) cm.

incurved-ascending or erect, 4–40 cm.

0.6–3.4 mm.

(14–)18–24 mm;

calyx 8.8–12.7(–14) mm, pilosulous to loosely strigulose, sometimes villous, tube 7.1–10 mm, lobes 1.7–2.8 mm;

corolla banner (14–)18–24 mm;

keel 14.7–20.1 mm.

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.

oblong-ellipsoid to lanceoloid-ellipsoid or, sometimes, ovoid-acuminate, 17–30 × 6–10 mm, somewhat fleshy becoming stiffly leathery or subligneous, usually strigulose or pilosulous, sometimes glabrous.

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.

24–35.

24–36.

2.5–11 mm, surfaces villosulous, sparsely strigulose, or glabrate abaxially.