Flora of North America species comparison

erect, branched.

ascending, erect, or procumbent, branched.

palmate;

stipules ovate to lanceolate, 0.8–1.5 cm, margins entire or slightly serrate, apex acicular;

petiole 1–7 cm;

petiolules to 0.5 mm;

leaflets 3, blades narrowly obcordate, obovate, oblanceolate, or linear, 1–2.5 × 0.3–0.7 cm, base cuneate, veins moderately thickened, margins serrate distally or entire, apex rounded, truncate, shallowly to deeply retuse, or deeply 2-fid, surfaces glabrous or hairy abaxially along midvein.

palmate;

stipules lanceolate or ovate, 0.5–1.8 cm, margins entire, apex acuminate-filiform;

petiole 0.5–20 cm;

petiolules to 1 mm;

leaflets 3, blades obovate, ovate, elliptic, or rhombic, 1–3 × 0.5–3 cm, base cuneate, veins moderately prominent, margins spinulose-dentate, apex rounded or broadly acute, surfaces hairy abaxially, glabrous adaxially.

axillary or terminal, 5–30-flowered, globose to subglobose, 0.8–1.5 × 0.8–1.5 cm, rachis prolonged beyond flowers;

involucres a very narrow rim, to 0.5 mm.

axillary, 15–30-flowered, subglobose to globose, flowers resupinate, forming stellate-spreading clusters in fruit, 0.5–1.6 × 0.8–1.5 cm;

involucres a narrow rim, 0.2 mm.

3–8 cm.

1–6 cm.

reflexed in fruit, 1–3 mm;

bracteoles broadly triangular, membranous, to 0.5 mm.

slightly reflexed, to 0.5 mm;

bracteoles minute or absent.

6–8 mm;

calyx campanulate, 3–3.6 mm, slightly hairy or glabrous, veins 10, tube 1–1.5 mm, lobes unequal, subulate, margins green or purple, orifice open;

corolla pink or purple, 5–7 mm, banner elliptic to oblong, 5–7 × 3–4 mm, apex rounded, apiculate.

5–6 mm;

calyx tubular-campanulate, inflated in fruit, markedly asymmetric-bilabiate, slit between adaxial lobes, 2.5–3 mm, 8–11 mm in fruit, hairy, short-hairy or glabrescent in fruit, veins 10, connected by lateral veins, tube 2 mm, 7–9 mm in fruit, lobes green, erect, unequal, triangular, divergent, linear-lanceolate, unequal in fruit, orifice open;

corolla pink to purple, 5–8 mm, banner oblong, 5–8 × 2 mm, apex emarginate to crenulate.

stipitate, obovoid, 3–4 mm.

lenticular, 1.8–2.2 mm.

1 or 2, brown, mottled, oblong, 2–3 mm, smooth.

1, ovoid, dark purple, olive green, yellow, or reddish brown, 1.5–1.9 mm, smooth, dull.

= 16.

= 14, 16, 32.