Flora of North America species comparison

erect, branched from base and distally, or unbranched.

creeping, branched, rooting at nodes.

palmate;

stipules ovate-oblong, 0.5–1.8 cm, margins entire, toothed, or irregularly lobed, apex acuminate;

petiole 0.5–10 cm;

petiolules to 1 mm;

leaflets 3, blades broadly obovate or elliptic, 1.7–3.3 × 1.1–2 cm, base cuneate, veins fine, margins entire or denticulate, apex rounded, obtuse, or retuse, surfaces pilose, abaxial less so.

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, 30–50-flowered, bluntly conic, ellipsoid, globose, or subglobose, 1.5–3 × 1.5–2.5 cm;

involucres absent.

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

involucres absent.

5–15 cm.

erect, from prostrate stems, 1.5–30 cm.

absent;

bracteoles cuplike, to 0.5 mm.

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

bracteoles white, lanceolate, 1–2 mm.

13–16 mm;

calyx tubular, 9–12 mm, pubescent, veins 20–30, tube 3 mm, lobes nearly equal, appearing rigidly erect, linear-setaceous, plumose, sinuses acute, orifice open;

corolla white to pink with purple tips, 12–16 mm, banner ovate-oblong, 12–15 × 4 mm, apex broadly rounded, emarginate.

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.

obovoid, 4 mm.

linear-oblong, 4–5 mm.

1, dark brown, ellipsoid, 2–3 mm, smooth.

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

= 16, 28, 32, 48, 64.