Flora of North America species comparison

prostrate, ascending, or erect, branched.

procumbent, decumbent, or ascending, branched.

palmate;

stipules ovate or triangular-lanceolate, 0.4–1.2 cm, margins entire, apex acute or acuminate;

petiole 0.5–7 cm;

petiolules to 1 mm;

leaflets 3, blades obovate, obcordate, or elliptic, 0.4–1.5 × 0.3–1 cm, base cuneate, veins moderately prominent, margins denticulate, apex rounded or emarginate, surfaces sparsely hairy abaxially, glabrous adaxially.

palmate;

stipules ovate, 1–1.5 cm, margins entire, apex subulate-setaceous;

petiole 0–7 cm;

petiolules to 0.5 mm;

leaflets 3, blades obovate or obcordate, 0.6–1.5 × 0.4–1 cm, base cuneate, veins thickened distally, margins spinulose-serrate, apex retuse or rounded, surfaces glabrous.

axillary, 10–20-flowered, subglobose, soon becoming globose, flowers resupinate, calyces densely white-woolly, compacted, inflated, 0.5–1.5 × 0.5–1.5 cm;

involucres a narrow rim, 0.2 mm.

axillary, 30+-flowered, globose, 0.8–1 × 0.8–1 cm;

involucres absent.

0.5–1.5 cm.

absent or to 0.1 cm.

slightly reflexed, to 0.5 mm;

bracteoles cup-shaped, membranous, 0.2 mm.

straight, to 0.2 mm;

bracteoles linear, to 0.5 mm.

3–7 mm;

calyx tubular, inflated in fruit, markedly asymmetric-bilabiate, 2–6 mm, woolly adaxially, veins 5–10, connected by lateral veins, tube 1.5–2.5 mm, 4–5 mm in fruit, lobes unequal, subulate, shorter than tube, adaxial spreading or curved, orifice open, abruptly constricted in fruit;

corolla pink, 3–6 mm, banner ovate, 3–6 × 3–6 mm, apex emarginate to crenulate.

6–8.5 mm;

calyx tubular-obconic, 3–4 mm, glabrous, veins 10–12, tube 1.5–2 mm, lobes equal, triangular-ovate, spreading to recurved in fruit, orifice open;

corolla pink, 6–8 mm, banner obovate, 6–8 × 1–2 mm, apex acute.

ovoid to globose, 2–3 mm.

obovoid, 2–3 mm.

1 or 2, yellow to brown, mottled, mitten-shaped, 0.9–1.1 mm, smooth, glossy.

2, brown, reniform, 1 mm, tuberculate.

= 16.

= 14, 16.