Flora of North America species comparison

creeping, branched, rooting at nodes.

erect or ascending, 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.

palmate;

stipules oblong to ovate, 0.8–1 cm, margins slightly denticulate or entire, apex acute to acuminate;

petiole 1–5 cm;

petiolules to 1 mm;

leaflets 3, blades obovate, 0.7–1.4 × 0.3–0.8 cm, base broadly cuneate, veins thickened, recurved, margins slightly denticulate, apex rounded or retuse, surfaces pubescent abaxially, glabrous adaxially.

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

involucres absent.

axillary or terminal, 5–15-flowered, globose or subglobose, 1–2 × 1.5–2 cm;

involucres floral bracts forming a small, scarious involucre.

erect, from prostrate stems, 1.5–30 cm.

geniculate proximal to flowers, inflorescence appearing inverted, 2.5–11 cm.

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

bracteoles white, lanceolate, 1–2 mm.

curved, 3–4 mm;

bracteoles broadly rhombic, membranous, to 0.5 mm, margins dentate.

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.

7–9 mm;

calyx campanulate, markedly bilabiate, venation strongly reticulate, 5–6 mm, sparsely pilose marginally, veins 5, reticulate in lobes, tube 0.7–1 mm, lobes unequal, abaxial 3 triangular-ovate, 2–3 mm, central abaxial lobe nearly linear, pubescent only along margins, adaxial 2 obovate, 5 mm, orifice open;

corolla white, tinged with pink or lavender, darkening in age, 6–8 mm, banner broadly ovate, 6–8 × 5–6 mm, apex rounded, denticulate.

linear-oblong, 4–5 mm.

oblong-ovoid, 3–4 mm.

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

2–6, yellow, globose to mitten-shaped, 1.1–1.6 mm, rugose.

= 16, 28, 32, 48, 64.

= 16.