Flora of North America species comparison

erect or semierect, with hollow pith, glabrescent.

prostrate, solid, strigulose or hirsute.

stipules retrorse, lanceolate, 42–60 × 8–15 mm;

petiole 1.8–4.5 cm, glabrescent;

rachis 5–11 mm;

stipels linear, 1–1.8 mm;

leaflets membranous, blades ovate, elliptic, or oblong, base attenuate, apex acute, surfaces strigulose abaxially, glabrescent adaxially;

lateral blades 2–4.5 × 0.6–2 cm, terminal blades 2–5.5 × 0.6–4 cm.

stipules spreading, widely deltate or ovate, 4.5–8 × 2–2.7 mm;

petiole 1.7–6 cm, strigose or hirsute;

rachis 5–9 mm;

stipels subulate, 1–5.5 mm;

leaflets papery, blades orbiculate, ovate to broadly ovate or obovate, base attenuate or cuneate, apex acute or obtuse, surfaces strigose abaxially, hirtellous adaxially;

lateral blades 2–4.3 × 1.6–2.9 cm, sometimes 2-lobed, terminal blades 2.3–4.7 × 1.6–2.8 cm.

19–46 cm, axes glabrous;

tufts of bracts at base of peduncle persistent, 3.3–6.3(–7.5) mm, triangular, puberulent;

extrafloral nectaries conspicuous at nodes;

bracts and bracteoles subulate.

14–25 cm (cleistogamous inflorescence over soil, 1.5–2.2 mm, flowers 3.5 mm, corolla whitish), axes adpressed-pilose;

tufts of bracts at base of peduncle mostly caducous;

extrafloral nectaries inconspicuous at nodes;

bracts and bracteoles subulate or lanceolate.

0.8–1.9 mm.

0.7–1 mm.

2–2.6 cm;

calyx tubular, 3–7 mm, strigose or glabrescent, calyx lobes shorter than tube;

corolla red;

banner oblong, 9.5–15 × 8–9 mm;

wings oblong, 11.5–26 × 6.5(–12) mm;

keel 9–16 mm;

ovary nectary disc distally oblique;

ovules 24.

1 cm;

calyx campanulate, 3.5–4.5 mm, hirtellous, calyx lobes as long as tube or longer;

corolla salmon-orange;

banner orbiculate, 5.5–7.5 × 4.5–6.5 mm;

wings oblong-ovate, 5.1–10 × 3.3–6.6 mm;

keel 4–8 mm;

ovary nectary disc distally even;

ovules 6.

patent, linear, 9.5–10.5 × 0.2–0.3 cm.

pendent, oblong-falcate, 1.6–2.5 × 2.7–3 cm, valves not twisting at dehiscence.

15–20, oblong, 2.5–4.4 × 2.5 mm, valves twisting at dehiscence.

4 or 5, oblong, 2.9–3 × 2–2.2 mm.

= 22.