Flora of North America species comparison

cespitose, spreading, branched proximally, sparsely branched distally.

procumbent or erect, branched.

palmate;

stipules broadly obovate, 1–2 cm, fused at base, margins slightly lobed, apex acute;

petiole 2–6 cm;

petiolules 1–1.5 mm;

leaflets 3, blades ovate, obovate, or orbiculate, slightly overlapping, 1–2 × 0.7–2.3 cm, base truncate to rounded, veins prominent, margins sparsely dentate, apex rounded, emarginate, surfaces glabrous.

palmate;

stipules ovate, 0.3–0.5 cm, margins entire, apex acuminate-subulate;

petiole 1–6 cm;

petiolules to 0.5 mm;

leaflets 3, blades obovate or obcordate, 0.3–0.8 × 0.2–0.6 cm, base cuneate, veins prominent adaxially, margins finely toothed, apex truncate or retuse, surfaces glabrous or sparsely hairy.

terminal, 20–30-flowered, globose, usually formed of 2 sessile heads, 2.5–5 × 2.5–5 cm;

involucres absent.

axillary, 10–20-flowered, dense, globose, 0.5–0.8 × 0.5–0.8 cm;

involucres absent, stipules forming involucrelike structures, overtopping inflorescences.

3–7 cm, surpassing subtending leaves.

essentially absent.

erect, reflexed in proximalmost flowers, 1 mm;

bracteoles cuplike, 0.5 mm.

straight, 0.1 mm;

bracteoles triangular, membranous, 0.5–1.2 mm, apiculate.

15–21 mm;

calyx tubular-campanulate, 9–12 mm, pilose, veins 10, tube 4.5–6 mm, lobes subequal, abaxialmost longest, subulate, orifice open;

corolla deep pink or magenta, 20–23 mm, banner tubular for most their length, 18–22 × 5–7 mm, apex flared.

3–5 mm;

calyx tubular, 3–5 mm, slightly hairy or glabrous, veins 10, tube 2–3 mm, lobes subequal, lanceolate, curved in fruit, orifice open;

corolla white, 2.5–3.5 mm, banner obovate, 2.5–3.5 × 1 mm, apex acute.

ellipsoid, 4–5 mm.

ovoid-ellipsoid, 3–5 mm.

1 or 2, yellow-mottled, mitten-shaped, 2–3 mm, smooth.

2, yellow, lenticular or reniform, 0.8–1 mm, minutely papillate.

= 16.