Flora of North America species comparison

erect, aerial stems sparsely branched.

ascending or erect, branched.

palmate;

stipules lanceolate, 0.7–1.5 cm, margins coarsely spinulose-dentate, apex acuminate;

petiole 1–3 cm;

petiolules to 0.5 mm;

leaflets 3, blades obovate, rhombic, or elliptic, sometimes folded, 0.9–1.5 × 0.5–1.3 cm, base cuneate, veins very thick, margins coarsely spinulose-dentate, apex rounded, long-apiculate, surfaces canescent.

palmate;

stipules lanceolate or ovate, 0.3–1.3 cm, margins lacerate, apex acute to acuminate;

petiole 2–7.3 cm;

petiolules to 0.9 mm;

leaflets 3, blades obovate-obcordate, elliptic, or obovate, 0.3–2.6 × 0.2–1.1 cm, base cuneate, veins thickened, margins denticulate, apex acute or retuse, surfaces glabrous.

axillary, 5–25-flowered, globose, 2.2–2.5 × 2.3–2.7 cm;

involucres a narrow, papery, irregular rim, to 0.5 mm.

axillary, 4–25-flowered, subglobose or globose, 0.7–2 × 0.8–3 cm;

involucres flat, 3.2–6.5 mm, incised 1/2 their length, lobes 4–7, lacerate.

2–4.5 cm.

1.7–7.5 cm.

reflexed in fruit, 1.5–4 mm;

bracteoles triangular, to 0.2 mm.

straight, to 0.5 mm;

bracteoles absent.

11–15 mm;

calyx campanulate, 5–11 mm, pilose, veins 10, tube 1.8–2.2 mm, lobes subequal, lanceolate-setiform, orifice open;

corolla creamy white with purplish veins, becoming pinkish purple-tinged, 10.5–13 mm, banner broadly rhombic-ovate or obovate, 10.5–13 × 5–7 mm, apex rounded, slightly emarginate.

7–25 mm;

calyx campanulate, not slit between adaxial lobes, 3.5–7.4 mm, glabrous, veins 10–20, tube 1.5–3.3 mm, lobes subequal, narrowly triangular, margins usually entire, orifice open;

corolla deep purple, usually white-tipped, 6.5–17 mm, banner obovate, 6.3–16 × 1.5–4 mm, apex emarginate.

ovoid, 3–4 mm.

oblong or ellipsoid, 3.6–3.8 mm.

1 or 2, brown, mitten-shaped, 1.5–2 mm, smooth.

2, blackish brown, mottled, ovoid or ellipsoid, 1.9–2.8 mm, smooth.

= 16.