Flora of North America species comparison

erect or ascending, branched.

creeping, branched, rooting at nodes.

palmate;

stipules obovate or lanceolate, 1–2.5 cm, margins entire or toothed, apex long-acuminate;

petiole 1–21 cm;

petiolules 1 mm;

leaflets 3, blades usually obovate or ovate, rarely rhombic, 1–4 × 1–2.5 cm, base cuneate, veins prominent, margins sharply serrate, apex broadly acute, obtuse, or emarginate, surfaces glabrous.

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.

terminal or axillary, 10–70+-flowered, globose to subglobose, 1–2.5 × 1–2.5 cm, rachis not prolonged beyond flowers;

involucres absent.

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

involucres absent.

2–10 cm.

erect, from prostrate stems, 1.5–30 cm.

strongly reflexed, 2–3.5 mm;

bracteoles lanceolate, 1 mm.

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

bracteoles white, lanceolate, 1–2 mm.

8–12 mm;

calyx campanulate, 3.5–4 mm, glabrous or sparsely hairy, veins 10, tube 1.5–2 mm, lobes unequal, lanceolate-subulate, orifice open;

corolla pale to dark pink, 7–10 mm, banner ovate-oblong, 6.5–10.5 × 4–6 mm, apex rounded-denticulate.

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, ellipsoid, 3–7 mm.

linear-oblong, 4–5 mm.

2–4, tan, brown, or red-brown, mitten-shaped, 1–1.4 mm, smooth, dull.

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

= 16.

= 16, 28, 32, 48, 64.