Flora of North America species comparison

creeping, branched, rooting at nodes.

± erect, loosely cespitose, branched.

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.

basal and cauline, palmate;

stipules ovate, 1.1–1.5 cm, margins entire, apex acuminate-subulate;

petiole 5–15 cm;

petiolules absent;

leaflets 3, blades lanceolate to linear, 2–4 × 0.1–0.6 cm, base cuneate, veins prominent, margins remotely serrate, apex acute, surfaces glabrous.

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

involucres absent.

terminal or axillary, 10–18-flowered, ellipsoid to subglobose, 1.8–2.2 × 2.3–2.5 cm, rachis prolonged beyond flowers, undivided or forked, often bearing sterile flower buds distally;

involucres absent.

erect, from prostrate stems, 1.5–30 cm.

7–16 cm, slightly twisted apically.

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

bracteoles white, lanceolate, 1–2 mm.

strongly reflexed in fruit, 0.5 mm;

bracteoles minute.

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.

13–15 mm;

calyx tubular-campanulate, 6–8.5 mm, glabrous, veins 10, tube 2–2.5 mm, lobes unequal, triangular-subulate, orifice open;

corolla pink to purple, 15 mm, banner oblong, 14–16 × 6–7 mm, apex acute or apiculate.

linear-oblong, 4–5 mm.

ellipsoid, 5 mm.

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

1 or 2, brown, flattened ovoid, 2 mm, smooth.

= 16, 28, 32, 48, 64.