Flora of North America species comparison

erect, branched.

creeping, branched, rooting at nodes.

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, 0.9–1.3 cm, margins entire, apex short-subulate;

petiole 5–20 cm;

petiolules to 1 mm;

leaflets 3, blades obovate, obcordate, or orbiculate, 0.6–4 × 0.4–2.5 cm, base cuneate, veins moderately prominent, margins serrulate distally, apex rounded, emarginate, or retuse, surfaces glabrous.

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, 20–40+-flowered, globose, 1.5–3.5 × 1.5–3.5 cm;

involucres absent.

3–8 cm.

erect, from prostrate stems, 1.5–30 cm.

reflexed in fruit, 1–3 mm;

bracteoles broadly triangular, membranous, to 0.5 mm.

strongly reflexed in fruit, elongate, 3–5 mm;

bracteoles white, lanceolate, 1–2 mm.

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.

8–13 mm;

calyx campanulate, 3–5 mm, glabrous, veins 6–10, tube 1.5–2.5 mm, lobes unequal to subequal, adaxial shorter than tube, triangular-lanceolate, orifice open;

corolla white, often pinkish in age, 4–12 mm, banner ovate-lanceolate or oblong, 4–12 × 1–4 mm, apex rounded.

stipitate, obovoid, 3–4 mm.

linear-oblong, 4–5 mm.

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

3 or 4, yellow, reddish brown, or light brown, ovoid-reniform, 1 mm, smooth, glossy.

= 16.

= 16, 28, 32, 48, 64.