Flora of North America species comparison

cespitose, spreading, branched proximally, sparsely branched distally.

erect or ascending, 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, 1–1.5 cm, sheathing, margins deeply lacerate, apex acuminate;

petiole 1.5–10 cm;

petiolules to 0.5 mm;

leaflets 3, blades elliptic, lanceolate, oblanceolate, rhombic, or obovate, 1.5–4 × 0.3–1.7 cm, base cuneate, veins thickened, margins coarsely spinulose-serrate, apex acute, mucronate, surfaces glandular.

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

involucres absent.

axillary or terminal, 10–50-flowered, globose or ovoid, 1–3.5 × 1–3 cm;

involucres flattened or bowl-shaped, 3–8 mm, when folded, not hiding flowers except proximally, incised 1/4–1/3 their length.

3–7 cm, surpassing subtending leaves.

3–15 cm, glandular.

erect, reflexed in proximalmost flowers, 1 mm;

bracteoles cuplike, 0.5 mm.

erect, 1 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.

13–20 mm;

calyx tubular-campanulate, slit between adaxial lobes, 10–13 mm, glandular, veins 20+, tube 5–7 mm, lobes unequal, narrowly triangular or lanceolate-subulate, usually entire, rarely 3-fid or shouldered below apex, orifice open;

corolla white or pale pinkish with dark purple spot, 10–18 mm, banner broadly elliptic, 10–18 × 2–4 mm, apex blunt.

ellipsoid, 4–5 mm.

obovoid, 3.5–4 mm.

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

1 or 2, brown, mottled, ellipsoid or mitten-shaped, 2.5 mm, smooth.

= 16.