Flora of North America species comparison

obscured by marcescent leaf bases and stipules.

decumbent or curved-ascending, glabrous.

mostly reduced to phyllodia, few with leaflets, 0.8–10 cm;

stipules connate-sheathing throughout, 2–7 mm, papery-scarious;

leaflets 0(or 3–5), blades (phyllodia) oblanceolate to linear, 4–30 mm, apex acute, mucronate, or spinulose, surfaces strigose;

terminal leaflet often confluent with rachis.

2–10 cm;

stipules 3–6 mm, membranous becoming papery-scarious;

leaflets 13–21, blades elliptic to oblong, oblanceolate, or obovate, 2–12 mm, apex obtuse to truncate, surfaces glabrous.

densely 1–11-flowered;

axis 0.2–3.5 cm in fruit;

bracts 0.5–4 mm;

bracteoles 0.

(5 or)6–9-flowered, flowers spreading to ascending;

axis 3–5.5 cm in fruit;

bracts 2.2–2.5 mm;

bracteoles 1 or 2.

erect or ascending, outer ones often prostrate in fruit, 0.4–9 cm.

erect or ascending, 4.5–8.8 cm.

0.3–1.7 mm.

2–3.5 mm.

5.7–9.5 mm;

calyx 2.6–5 mm, strigose, tube 1.9–3.4 mm, lobes subulate, 0.5–2.5 mm;

corolla pink purplish to ochroleucous or whitish;

banner recurved through 45°;

keel 4–6 mm.

17–21 mm;

calyx greenish to stramineous, 6.3–8 mm, sparsely black-strigose, tube 5–6 mm, lobes subulate, 1.3–2 mm;

corolla white;

banner recurved through 30°;

keel 13–15 mm, apex obtuse.

erect, pale green tinged purple, with red-mottle, becoming brown or stramineous, straight or slightly curved, lanceoloid to lanceoloid-oblong, 2-sided, laterally compressed, 4–13 × 1.5–3.3 mm, papery, usually strigose, rarely glabrous;

sessile.

ascending, stramineous, straight, oblong-ellipsoid to lanceoloid-ellipsoid, inflated, 15–23 × 6–11 mm, thinly leathery, scabrid-pubescent;

unilocular;

stipe 2–2.5 mm.

4–12.

20–38.

= 24.