Flora of North America species comparison

cespitose, branched, numerous short stems.

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.

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

involucres formed of proximal bracteoles, bases sometimes connate.

2–17 cm.

erect, 1.5–2 mm;

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

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.

oblong, 4–6 mm.

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

= 16.