Flora of North America species comparison

cespitose, branched, numerous short stems.

erect or ascending, branched.

palmate;

stipules lanceolate-linear, 1.5–2 cm, margins entire, apex acuminate;

petiole 0.6–3.5 cm;

petiolules to 0.5 mm;

leaflets 3, blades oblong-elliptic, oblanceolate, or obovate, sometimes folded, 0.6–3.2 × 0.2–0.6 cm, base cuneate, veins obscure, margins entire, apex acute, surfaces glabrous or hairy.

palmate;

stipules obliquely ovate, 0.4–1.2 cm, margins entire, toothed, or lacerate, apex acuminate;

petiole 1–8 cm;

petiolules 0.5 mm;

leaflets 3, blades obovate or obcordate, 0.4–1.4 × 0.3–1.2 cm, base cuneate, veins fine, thickened distally, margins serrate, apex rounded or emarginate, surfaces villous or glabrous.

axillary or terminal, 5–16-flowered, globose, 1.5–3.5 × 1.2–3.3 cm;

involucres formed of proximal bracteoles, bases sometimes connate.

axillary or terminal, 10–17-flowered, subglobose, 0.8–1.7 × 0.5–1.5 cm;

involucres cup-shaped, 0.5–1.5 cm, glabrous or sparsely hairy, lobes 8–12, ovate, conspicuously sharply toothed.

2–17 cm.

1.5–7.4 cm.

erect, 1.5–2 mm;

bracteoles linear-lanceolate, scarious, 2–6 mm, or scalelike.

absent;

bracteoles absent.

12–16 mm;

calyx campanulate, 6–9 mm, pubescent, veins 10, tube 2–5 mm, lobes unequal, linear-subulate, orifice open;

corolla often bicolored cream and violet, sometimes all red-purple or violet, 1.2–1.6 mm, banner broadly elliptic-ovate, 11–15 × 4–5 mm, folded distally, apex rounded, apiculate;

ovaries pubescent distally.

6–7 mm;

calyx tubular-campanulate, 3–4 mm, glabrous, veins 10, tube 2.5–3.5 mm, lobes ± equal, triangular, not or minutely aristate, conspicuously toothed, margins membranous, orifice open;

corolla pale pink or white, 6–9 mm, banner oblong, 6–9 × 2–3 mm, apex narrowly rounded or emarginate-mucronate.

oblong, 4–6 mm.

ovoid, 2–3 mm.

1–3, dark brown, ovoid-reniform, 2–2.5 mm, smooth.

1 or 2, greenish, sometimes mottled, oblong, 1.5–2 mm, smooth.

= 16.

= 16.