Flora of North America species comparison

cespitose, spreading, branched proximally, sparsely branched distally.

erect, unbranched or sparsely 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, 1–2 cm, margins wavy or toothed, apex blunt or ± tapering distally;

petiole 1–8 cm;

petiolules 1 mm;

leaflets 3, blades broadly ovate, 1–3 × 1–1.5 cm, base cuneate, veins fine, margins denticulate, apex emarginate or retuse, surfaces with spreading, pustulate-based hairs.

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

involucres absent.

terminal, 25–100-flowered, oblong, 2–7 × 1–2.5 cm;

involucres absent.

3–7 cm, surpassing subtending leaves.

2–10 cm.

erect, reflexed in proximalmost flowers, 1 mm;

bracteoles cuplike, 0.5 mm.

straight, 0.5 mm;

bracteoles absent.

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.

10–15 mm;

calyx tubular-campanulate, 10 mm, villous, veins 10, tube 3–4 mm, lobes equal, longer than tube, spreading in fruit, orifice narrowly opening;

corolla usually scarlet to red, rarely pink or white, 11–17 mm, banner oblong-elliptic, much longer than wing and keel petals, 10–16 × 2 mm, apex acute.

ellipsoid, 4–5 mm.

ovoid, leathery distally, transversely dehiscent, 2.5–3 mm.

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

1, reddish, ellipsoid, 2–2.5 mm, smooth, glossy.

= 14.