Flora of North America species comparison

ridged, densely spreading-pilose (hairs usually ± tubercular-based), glabrescent.

stipules lanceolate, 3–12 mm;

petiole 1–8.5(–14) cm;

rachis 0.5–1.4(–1.9) cm;

stipels lanceolate;

leaflet blades ovate or ovate-triangular, 1.2–10 × 1.1–6.5 cm, base rounded, truncate or subhastate, sometimes distinctly 3-lobed, apex rounded or subacute to acuminate.

rachis 0.3–2 cm, with conspicuous glandular nodes;

bracts deciduous.

1–45 cm.

erect, 2–4 mm;

bracteoles deciduous, linear, 1.5 mm.

calyx tube 6 mm, lobes deltate, 2 mm, adaxial lobe rounded, emarginate, glabrous or pubescent;

corolla 1.5 cm;

banner oblong, with flaplike auricles at base, above claw;

wings spatulate, right wing twisted to horizontal position;

keel pale, tinged blue, twisted, beak hooked, with distalmost portion splayed open, inner margins of keel beak not fused but closed by conspicuous interlocking marginal hairs.

6–10 × 0.2–0.5 cm.

dark red or brown, angular, narrowly oblong, 4 mm;

hilum relatively small, subcentral.

0.2–1.8 m; often rooting at nodes.