Flora of North America species comparison

± erect, loosely cespitose, branched.

erect, branched from base and distally, or unbranched.

basal and cauline, palmate;

stipules ovate-lanceolate, 0.5–2 cm, margins usually entire, sometimes lobed, apex acute to acuminate;

petiole 0.5–12 cm;

petiolules 1 mm;

leaflets 3, blades lanceolate or elliptic, 0.5–2 × 0.3–1.3 cm, base cuneate, veins prominent, margins serrate, apex acute, apiculate, surfaces glabrous.

palmate;

stipules ovate or elliptic, 0.3–1 cm, margins entire, ciliate, apex acuminate;

petiole 0.5–6.5 cm;

petiolules 0.5–0.7 mm;

leaflets 3, blades obovate or oblanceolate, 0.5–1.5 × 0.2–1.1 cm, base cuneate, veins obscure or slightly thickened, margins dentate, apex rounded or emarginate, surfaces pilose or glabrescent.

terminal or axillary, 15–30-flowered, ellipsoid or conic, 1.5–2 × 1–3 cm, rachis prolonged beyond flowers, undivided or forked, often bearing sterile flower buds distally;

involucres absent.

terminal or axillary, 15–35-flowered, ovoid-ellipsoid, 1.1–2.2 × 1–1.5 cm;

involucres absent.

2–13 cm, slightly twisted apically.

2.5–10 cm.

strongly reflexed in fruit, 0.5 mm;

bracteoles minute, lanceolate.

absent;

bracteoles cuplike, to 0.5 mm.

12–14 mm;

calyx pink to purple, campanulate, 3–3.5 mm, glabrous, veins 10 (5 sometimes faint), tube 1.5–1.7 mm, lobes subequal, triangular-subulate, orifice open;

corolla pink to deep purple, 12–14 mm, banner oblong, 12–14 × 4–5 mm, apex rounded or retuse.

10–12 mm;

calyx tubular, 4–8 mm, densely pubescent, veins 20–30, tube 2–4 mm, lobes nearly equal, appearing rigidly erect, linear-setaceous, plumose, sinuses acute, orifice open;

corolla red-violet to pink, with pink or white tips, 7–12 mm, banner ovate-oblong, 9–11 × 3–4 mm, apex broadly rounded, emarginate.

obliquely ellipsoid, 5 mm.

obovoid, 3–3.5 mm.

1 or 2, brown, often purple-mottled, flattened ovoid, 2–3 mm, smooth.

1, yellow-brown, ellipsoid, 2–2.5 mm, smooth.

= 16.