Flora of North America species comparison

angular, sometimes lignescent at base, from subterranean, branched caudex.

leaflet blades usually ovate, rarely orbiculate to lanceolate or panduriform, margins deeply to shallowly lobed or entire, sinus 0–18.2 mm, lateral leaflets 1.3–6.3 × 0.6–4.3 cm, terminal leaflet 1.8–7.2 × 0.9–4.6 cm, surfaces strigose.

with (1 or)2–5 flower-bearing nodes.

stout, lignescent, (2.4–)5–21.5 cm, 0.8–1.3 mm diam.

bracteoles 1.5–4.2 mm, equal to or longer than calyx tube;

calyx tube 1.3–3.6 mm, lobes 1–2.5 mm;

banner pinkish, 6.7–13.3 mm;

wings light pink, 7–9 mm;

keel 8–13 mm, beak slender, distinctly curved, 1 mm diam., projected away from face of banner, protruding well above wings.

cylindric, laterally compressed, 3–9.6 × (0.3–)0.4–0.8 cm, glabrous or sparsely strigose.

5–10, faintly mottled, with cellular or waxy covering.

perennial, with thick taproot.

= 22.