Flora of North America species comparison

erect, branched.

erect, branched from base and distally, or unbranched.

palmate;

stipules ovate-lanceolate, 1–1.5 cm, margins entire, sometimes ciliate, apex acuminate;

petiole 1–13 cm;

petiolules 0.5 mm;

leaflets 3, blades elliptic to oblong or obovate, 0.8–3.5 × 0.5–1.5 cm, base cuneate, veins thickened, margins serrate proximally, obscurely denticulate distally, apex usually rounded or retuse, rarely acute, 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.

axillary or terminal, 10–30-flowered, ovoid to subglobose, 0.7–2.2 × 0.5–2 cm;

involucres a narrow rim, 0.5 mm, membranous, dentate.

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

involucres absent.

2.5–12 cm.

2.5–10 cm.

erect becoming reflexed, 0.5–6 mm;

bracteoles linear or cup-shaped, to 1 mm.

absent;

bracteoles cuplike, to 0.5 mm.

6–13 mm;

calyx broadly campanulate, 5–11 mm, glabrous, veins 10, tube 1–5 mm, lobes unequal, elliptic to linear, margins hyaline, dentate or pectinate, ciliate, sinuses narrow, orifice open;

corolla white, pink, or purple, 5–13 mm, banner broadly ovate, 6–13 × 4–7 mm, apex rounded, apiculate.

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.

short-stipitate, ovoid, 5–10 mm.

obovoid, 3–3.5 mm.

1 or 2, brown, mottled, ovoid, 2.5–3 mm, smooth.

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

= 16.