Flora of North America species comparison

erect or ascending, loosely cespitose, sometimes rhizomatous, sparsely branched.

palmate;

stipules oblong, 0.5–2 cm, margins entire, apex acute to short-acuminate;

petiole 2–10 cm;

petiolules 0.5 mm;

leaflets 3, blades elliptic to obovate, 1–4.1 × 0.5–1.6 cm, base cuneate, veins fine, margins entire, serrulate, or dentate, apex usually acute or obtuse, rarely retuse or apiculate, surfaces glabrous.

blades thick.

ellipsoid, 3–3.7 cm.

terminal, 15–20-flowered, globose, ovoid, or ellipsoid, 1.4–3.7 × 1.8–3 cm;

involucres formed of distinct or connate bracteoles, apex acute or obtuse.

thickened.

2.5–15 cm.

bracteoles relatively large, acute.

erect, reflexed slightly, or only those of proximal flowers reflexed, 1 mm;

bracteoles purplish, oblong, 3–6 mm, scarious.

14–22 mm.

12–22 mm;

calyx campanulate, slightly gibbous, 6–9 mm, glabrous, veins 10, tube 3–4 mm, lobes unequal, subulate to narrowly triangular, orifice open;

corolla pale purplish violet, keel petals darker purple, 10–22 mm, banner broadly elliptic or obovate, 10–22 × 8–10 mm, apex rounded, acute, or retuse.

stipitate, oblong, 6–7 mm.

1–4, tan or brown, mitten-shaped, 1.5–2 mm, smooth, dull.

1.5–2 cm.

= 32.