Flora of North America species comparison

prostrate, ascending, or erect, branched.

erect, ascending, or decumbent, unbranched or branched distally.

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 lanceolate-elliptic on basal leaves, triangular-ovate on distal leaves, 0.8–3 cm, margins entire, apex acute or acuminate;

petiole 1–15 cm;

petiolules 1 mm;

leaflets 3, blades ovate, rhombic, or lanceolate, 1–4.5 × 0.3–2.5 cm, thin, base cuneate, veins prominent, margins serrate, those of basal leaves setose and/or dentate, apex rounded or acute, 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.

terminal or axillary, 20–40-flowered, ovoid or obovoid, 2–4 × 1.4–3.5 cm, rachis internodes between floral whorls elongated;

involucres absent.

0.5–1.5 cm.

4–15 cm.

slightly reflexed, to 0.5 mm;

bracteoles cup-shaped, membranous, 0.2 mm.

reflexed, to 1 mm;

bracteoles minute, blunt.

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.

14–17 mm;

calyx campanulate, 4–5.7 mm, sparsely hairy, veins 10, tube 2–3.5 mm, lobes unequal, shorter than tube, narrowly triangular, orifice open;

corolla violet or deep purple, 14–17 mm, banner ovate-oblong, 14–16 × 8–10 mm, apex rounded or slightly emarginate.

ovoid to globose, 2–3 mm.

oblong or clavate, 4–5 mm.

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

1–3, brown, flattened ovoid, 2 mm, smooth or slightly roughened, dull.

= 16.