Flora of North America species comparison

erect to prostrate, branched from base.

cespitose, matted, acaulescent.

pinnate;

stipules ovate, 0.3–0.5 cm, margins entire, apex acute;

petiole to 1.5 cm;

lateral leaflet petiolules to 0.5 mm, terminal leaflet stalk 1–1.5 mm;

leaflets 3, blades obovate to elliptic-lanceolate, 1–2 × 0.5–1.5 cm, base cuneate, lateral veins prominent, ± parallel, ascending, margins dentate distally, apex rounded or retuse, surfaces glabrous or sparsely hairy.

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.

axillary or terminal, 5–20-flowered, ovoid or globose, 0.5–0.9 × 0.6 cm;

involucres absent.

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.

1–1.5 cm.

0.5–3 cm.

reflexed, 0.2–0.5 mm;

bracteoles a fringe of red setae.

erect, 1 mm;

bracteoles cuplike, membranous, 0.5–1 mm.

2.8–3.5 mm;

calyx campanulate, 1.5–2 mm, glabrous, veins 5, tube 0.8–1 mm, lobes unequal, longer than tube, adaxial 2 shorter, orifice open;

corolla pale yellow becoming brown, 2.6–3.2 mm, not or slightly ribbed, banner persistent, spatulate, 2.6–3.2 × 2 mm, apex rounded to broadly acute.

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.

stipitate, ellipsoid, 1.5–2 mm, short beaked.

oblanceoloid, 9–11 mm.

1, yellow or pale brown, ellipsoid, 0.9–1 mm, smooth, glossy.

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

= 16, 28, 32.

= 16.