Flora of North America species comparison

erect or ascending, branched.

erect, aerial stems sparsely branched.

palmate;

stipules ovate-lanceolate, 0.5–2.5 cm, membranous, margins entire or slightly serrate, apex long-acuminate;

petiole 0.5–9 cm;

petiolules to 0.5 mm;

leaflets 3, blades obovate to obcordate, 0.5–2.5 × 0.2–1.5 cm, base cuneate, veins moderately thickened, margins setose-serrulate, apex rounded, shallowly retuse, surfaces glabrous.

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.

axillary or terminal, 10–25-flowered, globose to subglobose, 0.5–2 × 0.5–2 cm, rachis prolonged beyond flowers;

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

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

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

1–9 cm.

2–4.5 cm.

becoming dramatically reflexed, 3–4 mm;

bracteoles low, cuplike, membranous, to 0.5 mm.

reflexed in fruit, 1.5–4 mm;

bracteoles triangular, to 0.2 mm.

5–7.5 mm;

calyx narrowly campanulate, 4.5–6.5 mm, glabrous, veins 10, tube 2–2.5 mm, lobes unequal, long-triangular, margins green or purple, orifice open;

corolla white, pink, or purple, 5–8 mm, banner ovate, 5–8 × 3–4 mm, apex broadly rounded, retuse or apiculate.

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.

ovoid-ellipsoid, 4–6 mm.

ovoid, 3–4 mm.

1 or 2, tan to brown, mitten-shaped, 1.1–1.5 mm, smooth.

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

= 16.