Flora of North America species comparison

cespitose, matted, acaulescent.

erect or ascending, sparsely to much branched.

palmate;

stipules ovate-lanceolate, 1–2 cm, margins entire, apex acuminate, sometimes forked;

petiole 0.3–2.5 cm;

petiolules to 0.2 mm;

leaflets 3, blades oblanceolate or obovate, 0.3–1.2 × 0.1–0.5 cm, base cuneate, veins ± thickened, margins toothed, apex acute or acuminate, surfaces glabrous.

palmate;

stipules ovate-lanceolate, 1–1.5 cm, margins entire, apex acute-acuminate;

petiole 8–12 cm;

petiolules 1 mm;

leaflets 3, blades oblanceolate or obovate, 2.8 × 1.9 cm, base cuneate, veins delicate, margins entire or shallowly dentate distally, lateral veins sometimes ending in a bristle, apex rounded to acute, surfaces glabrous.

terminal or axillary, 1–4-flowered, umbellate, 1.5–2 × 0.5–1 cm, rachis not prolonged beyond flowers;

involucres a narrow, membranous, dentate rim, 1 mm.

axillary or terminal, 3–16-flowered, in 1–3 whorls, subglobose, 2–2.8 × 1.8–2.6 cm;

involucres bowl-shaped, 6–15 mm, lobes 6–8, broadly lanceolate, margins entire, acuminate, apex 3–5-fid.

0.5–3 cm.

5–15 cm.

erect, 1 mm;

bracteoles cuplike, membranous, 0.5–1 mm.

straight, 0.5–1 mm;

bracteoles absent.

15–20 mm;

calyx campanulate, 4–7 mm, glabrous, veins 5–10, tube 3–4 mm, lobes equal, triangular-acuminate, orifice open;

corolla purple or violet, 15–20 mm, banner oblong, 15–20 × 7–9 mm, apex rounded, slightly retuse.

12–14 mm;

calyx campanulate, 5–8 mm, glabrous, veins 10, tube 2.5–4 mm, lobes 11–15, unequal, abaxial 3–5 forked, adaxial unbranched, orifice open;

corolla creamy white to pinkish, 11–13 mm, banner ovate, inflated entire length in fruit, not distally twisted, 11–13 × 5–7 mm, apex rounded.

oblanceoloid, 9–11 mm.

ellipsoid, 5–6 mm.

4–6, tan or brown, mitten-shaped, 2–2.2 mm, smooth, dull.

1 or 2, gray-brown, black-mottled, subglobose, 2.5 mm, smooth.

= 16.