Flora of North America species comparison

cespitose, spreading, branched proximally, sparsely branched distally.

decumbent, 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, 1.3–1.7 cm, margins entire or faintly denticulate, apex acuminate;

petiole 7–17 cm (distalmost 6–8 cm);

petiolules 1–1.5 mm;

leaflets 3, blades ovate or orbiculate, 0.8–3.5 × 0.5–1.9 cm, base cuneate, veins fine, margins dentate to denticulate, apex rounded or obcordate, surfaces glabrous.

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

involucres absent.

terminal, 20–50-flowered, globose becoming subglobose or hemispheric, 1.2–2.5 × 1.8–2.7 cm;

involucres a narrow rim.

3–7 cm, surpassing subtending leaves.

2.2–2.5 cm.

erect, reflexed in proximalmost flowers, 1 mm;

bracteoles cuplike, 0.5 mm.

reflexed in fruit, 5–7 mm;

bracteoles broadly ovate, membranous, to 0.5 mm, truncate.

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.

9–11 mm;

calyx campanulate, 3–5 mm, sparsely pubescent or glabrous, veins 10, tube 1–2 mm, lobes equal, narrowly triangular to subulate, 2–3.7 mm, orifice open;

corolla white, 9–10 mm, banner ovate-oblong, 9–10 × 6–8 mm, apex rounded or retuse.

ellipsoid, 4–5 mm.

oblong, 3–4 mm.

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

2–4, yellow to brown, purple-mottled, globose, 1.2–1.5 mm, slightly rugose.