Flora of North America species comparison

cespitose, spreading, branched proximally, sparsely branched distally.

usually erect or ascending, rarely prostrate, 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 triangular-lanceolate, 0.4–0.8 cm, margins entire, apex dark purple or reddish, sharply recurved, subulate;

petiole 0.5–10 cm;

petiolules 0.5 mm;

leaflets 3, blades obovate or obtriangular, 0.5–2.5 × 0.3–2.5 cm, base cuneate, veins fine, margins denticulate, apex rounded to emarginate, surfaces glabrous.

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

involucres absent.

axillary or terminal, 15–50-flowered, globose, 1–1.8 × 1–1.8 cm;

involucres a narrow rim, to 0.2 mm.

3–7 cm, surpassing subtending leaves.

1.5–4 cm.

erect, reflexed in proximalmost flowers, 1 mm;

bracteoles cuplike, 0.5 mm.

reflexed in fruit, 3–6 mm;

bracteoles narrowly oblanceolate, 3–6.5 mm.

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.

6.5–9 mm;

calyx oblong, 3–5 mm, glabrous or pubescent, veins 5–10, tube 1–2.5 mm, lobes ± equal or unequal, triangular-lanceolate, recurved in fruit, margins green or purple, apex acute to acuminate, orifice open;

corolla pink or white, 6–9 mm, banner obovate-oblong, 6–9 × 1–2 mm, apex acute to emarginate.

ellipsoid, 4–5 mm.

linear-oblong, 3–4.5 mm.

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

1–5, yellow or pale or dark brown, oblong, 1 mm, smooth.

= 16.