Flora of North America species comparison

cespitose, spreading, branched proximally, sparsely branched distally.

erect or ascending, unbranched or 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 broadly ovate, 1–2.5 cm, margins entire or denticulate, apex acute or acuminate;

petiole 1–10 cm (distalmost 0.3–3.5 cm);

petiolules 0.5–1.5 mm;

leaflets 3, blades ovate, obovate, oblong, or rhombic, 1–4.5 × 0.7–2 cm, base cuneate, veins fine, margins dentate to denticulate, apex broadly acute, rounded, or emarginate, surfaces pubescent or glabrous.

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

involucres absent.

terminal or axillary, 10–50-flowered, globose to subglobose, 1.5–4 × 2–4 cm;

bracteoles forming shallow, membranous cups, to 0.5 mm.

3–7 cm, surpassing subtending leaves.

2–8 cm.

erect, reflexed in proximalmost flowers, 1 mm;

bracteoles cuplike, 0.5 mm.

reflexed in fruit, 5–12 mm;

bracteoles broad-obovate, membranous, 0.5–1 mm, truncate to 2-fid.

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 campanulate, 6–9 mm, pilose or glabrous, veins 10, tube 1–1.5 mm, lobes equal, narrowly triangular to subulate, 3–7 mm, margins green, sinuses broad, orifice open;

corolla usually pink, magenta, or creamy white, sometimes bicolored, 9–14 mm, banner obovate-oblong, 9–14 × 5–8 mm, apex rounded or retuse, often erose-denticulate.

ellipsoid, 4–5 mm.

oblong, 4–5 mm.

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

1–6, yellow to brown, purple-mottled, globose, 1.2–1.5 mm, slightly rugose.

= 16.