Flora of North America species comparison

obscured by marcescent leaf bases and stipules.

prostrate and radiating, 0–10 cm, internodes usually concealed by stipules, densely pannose-tomentose.

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.

1.5–12 cm;

stipules 3–10 mm, membranous;

leaflets 9–19, blades obovate or suborbiculate to ovate, 2–15 mm, apex usually obtuse to emarginate, sometimes acute, surfaces densely villous-tomentose.

densely 1–11-flowered;

axis 0.2–3.5 cm in fruit;

bracts 0.5–4 mm;

bracteoles 0.

2–8-flowered, flowers ascending;

axis 0.4–2.6 cm in fruit;

bracts 4–9 mm;

bracteoles 0–2.

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

ascending, decumbent in fruit, 1–14 cm.

0.3–1.7 mm.

2–4.3 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.

23–31 mm;

calyx cylindric, 12–14 mm, villous-tomentose, tube 8.5–13 mm, lobes lanceolate-subulate, 2–4.5 mm;

corolla usually pink-purple, rarely white;

banner recurved through 45°;

keel (16–)17–22 mm.

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.

initially ascending (humistrate), color concealed by hairs, ± straight, lanceoloid-ellipsoid or narrowly ovoid-acuminate, obcompressed, 17–30 × 5.5–7.5 mm, unilocular, fleshy becoming stiffly papery or thinly leathery, shaggy-villous, hairs 4–8 mm, obscuring surface;

sessile and gynophore 1–2.5 mm.

4–12.

22–31.

= 24.

= 22.