Flora of North America species comparison

erect or ascending, unbranched or densely dichotomously branched.

cespitose, acaulescent.

palmate;

stipules ovate or lanceolate, 1–3 cm, margins entire or toothed, apex usually acuminate, sometimes 2-fid;

petiole 3–15 cm;

petiolules 1–1.5 mm;

leaflets 3, blades broadly obovate, orbiculate, or rhombic-obovate, 0.8–4 × 0.7–3 cm, base broadly cuneate, veins obscure, thickened near leaflet margin, margins remotely dentate to densely serrulate-dentate, apex rounded or slightly retuse, surfaces glabrous or glabrate.

palmate;

stipules broadly lanceolate, 0.5–0.9 cm, margins entire, apex acute;

petiole 0.3–1.5 cm;

petiolules to 0.2 mm;

leaflets 3, blades oblanceolate to obovate, often folded, 0.3–0.8 × 0.1–0.4 cm, base cuneate, veins thickened, obscured by pubescence, margins entire or toothed distally, apex acute, surfaces densely silvery-hairy.

terminal or axillary, 10–30-flowered, subglobose or globose, 1–4 × 1–4 cm;

involucres broadly bowl-shaped, 4–15 mm, lobes 3–8, lanceolate, acuminate, undivided or 2- or 3-fid.

terminal, 4–9-flowered, globose or depressed-globose, 1–1.5 × 1–2 cm;

involucres absent.

3–13 cm.

1–3 cm.

straight, 1 mm;

bracteoles distinct or connate, broadly ovate, 1 mm.

erect, 0.5 mm;

bracteoles absent.

10–27 mm;

calyx campanulate, 3–8 mm, glabrous, veins 10, tube 1.5–2.5 mm, lobes 5–10, unequal, undivided or 3-fid, long-acuminate, orifice open;

corolla creamy white to yellow, pink to purple in age, keel petals rarely dark purple, 10–27 mm, banner broadly ovate, inflated in fruit, not distally twisted, 10–27 × 6–15 mm, apex rounded, erose.

9–11 mm;

calyx campanulate, 8.5–9.5 mm, canescent, veins 5–10 (obscured by hairs), tube 2.5–3 mm, lobes subequal, subulate, orifice open;

corolla with magenta banner, pale pink wing and keel petals, 8–10 mm, banner oblong, 8–10 × 2–3 mm, apex acute.

stipitate, linear, 7–8 mm.

depressed-ellipsoid, 3–4 mm.

3–8, gray, mottled, globose, 1.6–2 mm, reticulate.

1, brown, reniform, 2–2.5 mm, smooth.

= 16.

= 16.