Flora of North America species comparison

usually erect, ascending, or prostrate, branched.

densely mat-forming, short-branched.

palmate;

stipules lanceolate or ovate, 0.3–1 cm, margins lacerate, apex acute to acuminate;

petiole 1–9 cm;

petiolules to 0.8 mm;

leaflets 3, blades elliptic, obovate, oblanceolate, or obcordate, 0.2–5 × 0.1–1.2 cm, base cuneate, veins thickened, margins denticulate, apex acute or retuse, surfaces glabrous.

palmate;

stipules ovate or lanceolate, 0.5–1 cm, margins entire or lobed, apex acute or acuminate;

petiole 0.3–30 cm, pubescent;

petiolules 0.2 mm;

leaflets 3, blades oblanceolate, 0.3–1.6 × 0.1–0.7 cm, base cuneate, veins close-set, 12–18 pairs of primary veins, 0.5 mm apart, margins sharply antrorsely serrate, apex acute, long-apiculate, surfaces usually glabrous, rarely midvein pubescent abaxially.

terminal or axillary, 1–20+-flowered, subglobose or globose, 0.5–1.3 × 0.1–1 cm;

involucres flat, 2–6 mm, incised 1/2 their length, lobes 2–7, lacerate.

terminal, 8–18-flowered, globose or subglobose, 1.2–2.5 × 2–3 cm;

involucres absent.

0.5–5 cm.

0.5–3.5 cm, pubescent.

straight, to 0.5 mm;

bracteoles absent.

reflexed, 2–3.5 mm, pubescent;

bracteoles broad, membranous, to 0.2 mm.

5–11 mm;

calyx campanulate, not slit between adaxial lobes, 1.9–2.4 mm, glabrous, veins 10–20, tube 1.5–4 mm, lobes subequal, narrowly triangular, margins usually entire, rarely with a small lateral tooth, orifice open;

corolla purple, usually white-tipped, 3–10 mm, banner obovate, 3–10 × 0.6–2.6 mm, apex emarginate.

8–13 mm;

calyx campanulate, 4–6 mm, pubescent, veins 5–10, tube 1.5–2.5 mm, lobes subequal, narrowly triangular-subulate, orifice open;

corolla creamy white, 8–13 mm, banner broadly elliptic-oblong, 10–13 × 6–8 mm, apex rounded, slightly apiculate.

oblong or ellipsoid, 2–4 mm.

stipitate, flattened, ovoid, 2–3.5 mm.

2, blackish brown, sometimes mottled, ovoid or ellipsoid, 1–1.6 mm, smooth.

1, yellow, mottled, flattened-ovoid, 2 mm, smooth.

= 16.