Flora of North America species comparison

erect or ascending, branched.

erect, ascending, or decumbent, unbranched or branched distally.

palmate;

stipules obovate or lanceolate, 1–2.5 cm, margins entire or toothed, apex long-acuminate;

petiole 1–21 cm;

petiolules 1 mm;

leaflets 3, blades usually obovate or ovate, rarely rhombic, 1–4 × 1–2.5 cm, base cuneate, veins prominent, margins sharply serrate, apex broadly acute, obtuse, or emarginate, surfaces glabrous.

palmate;

stipules lanceolate-elliptic on basal leaves, triangular-ovate on distal leaves, 0.8–3 cm, margins entire, apex acute or acuminate;

petiole 1–15 cm;

petiolules 1 mm;

leaflets 3, blades ovate, rhombic, or lanceolate, 1–4.5 × 0.3–2.5 cm, thin, base cuneate, veins prominent, margins serrate, those of basal leaves setose and/or dentate, apex rounded or acute, surfaces glabrous.

terminal or axillary, 10–70+-flowered, globose to subglobose, 1–2.5 × 1–2.5 cm, rachis not prolonged beyond flowers;

involucres absent.

terminal or axillary, 20–40-flowered, ovoid or obovoid, 2–4 × 1.4–3.5 cm, rachis internodes between floral whorls elongated;

involucres absent.

2–10 cm.

4–15 cm.

strongly reflexed, 2–3.5 mm;

bracteoles lanceolate, 1 mm.

reflexed, to 1 mm;

bracteoles minute, blunt.

8–12 mm;

calyx campanulate, 3.5–4 mm, glabrous or sparsely hairy, veins 10, tube 1.5–2 mm, lobes unequal, lanceolate-subulate, orifice open;

corolla pale to dark pink, 7–10 mm, banner ovate-oblong, 6.5–10.5 × 4–6 mm, apex rounded-denticulate.

14–17 mm;

calyx campanulate, 4–5.7 mm, sparsely hairy, veins 10, tube 2–3.5 mm, lobes unequal, shorter than tube, narrowly triangular, orifice open;

corolla violet or deep purple, 14–17 mm, banner ovate-oblong, 14–16 × 8–10 mm, apex rounded or slightly emarginate.

stipitate, ellipsoid, 3–7 mm.

oblong or clavate, 4–5 mm.

2–4, tan, brown, or red-brown, mitten-shaped, 1–1.4 mm, smooth, dull.

1–3, brown, flattened ovoid, 2 mm, smooth or slightly roughened, dull.

= 16.