Flora of North America species comparison

erect, branched.

procumbent or erect, branched.

palmate;

stipules ovate-lanceolate, 1–1.5 cm, margins entire, sometimes ciliate, apex acuminate;

petiole 1–13 cm;

petiolules 0.5 mm;

leaflets 3, blades elliptic to oblong or obovate, 0.8–3.5 × 0.5–1.5 cm, base cuneate, veins thickened, margins serrate proximally, obscurely denticulate distally, apex usually rounded or retuse, rarely acute, surfaces glabrous.

palmate;

stipules ovate, 0.3–0.5 cm, margins entire, apex acuminate-subulate;

petiole 1–6 cm;

petiolules to 0.5 mm;

leaflets 3, blades obovate or obcordate, 0.3–0.8 × 0.2–0.6 cm, base cuneate, veins prominent adaxially, margins finely toothed, apex truncate or retuse, surfaces glabrous or sparsely hairy.

axillary or terminal, 10–30-flowered, ovoid to subglobose, 0.7–2.2 × 0.5–2 cm;

involucres a narrow rim, 0.5 mm, membranous, dentate.

axillary, 10–20-flowered, dense, globose, 0.5–0.8 × 0.5–0.8 cm;

involucres absent, stipules forming involucrelike structures, overtopping inflorescences.

2.5–12 cm.

essentially absent.

erect becoming reflexed, 0.5–6 mm;

bracteoles linear or cup-shaped, to 1 mm.

straight, 0.1 mm;

bracteoles triangular, membranous, 0.5–1.2 mm, apiculate.

6–13 mm;

calyx broadly campanulate, 5–11 mm, glabrous, veins 10, tube 1–5 mm, lobes unequal, elliptic to linear, margins hyaline, dentate or pectinate, ciliate, sinuses narrow, orifice open;

corolla white, pink, or purple, 5–13 mm, banner broadly ovate, 6–13 × 4–7 mm, apex rounded, apiculate.

3–5 mm;

calyx tubular, 3–5 mm, slightly hairy or glabrous, veins 10, tube 2–3 mm, lobes subequal, lanceolate, curved in fruit, orifice open;

corolla white, 2.5–3.5 mm, banner obovate, 2.5–3.5 × 1 mm, apex acute.

short-stipitate, ovoid, 5–10 mm.

ovoid-ellipsoid, 3–5 mm.

1 or 2, brown, mottled, ovoid, 2.5–3 mm, smooth.

2, yellow, lenticular or reniform, 0.8–1 mm, minutely papillate.

= 16.

= 16.