Flora of North America species comparison

prostrate, ascending, or erect, branched.

erect to 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.

pinnate;

stipules ovate-lanceolate, 0.5–0.8 cm, margins entire, glandular, apex acuminate;

petiole 0.3–2 cm;

lateral leaflet petiolules 0.5–0.6 mm, terminal leaflet stalk 3–5 mm;

leaflets 3, blades rhombic to obovate, 0.4–1.5 × 0.4–0.8 cm, base cuneate, lateral veins prominent, ± parallel, ascending, margins denticulate distally, apex truncate or retuse, surfaces strigose adaxially.

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, 30–60-flowered, globose or broadly ovoid, 0.8–1.5 × 0.7–1 cm;

involucres absent.

0.5–1.5 cm.

1.5–3.5 cm.

slightly reflexed, to 0.5 mm;

bracteoles cup-shaped, membranous, 0.2 mm.

reflexed, 0.7–1.2 mm;

bracteoles a fringe of red setae.

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.

4.3–5 mm;

calyx campanulate, strongly bilabiate, 1.3–1.5 mm, glabrous, veins 5, tube 0.3–0.6 mm, lobes unequal, adaxial deltate, very short, lateral and abaxial linear-subulate, each tipped with 1 or 2 stiff hairs, orifice open;

corolla yellow becoming brown, 3.5–6 mm, ribbed, banner persistent, obovate, enveloping other petals, boat-shaped, 4.3–5 × 2.8–3.2 mm, apex broad, acute.

ovoid to globose, 2–3 mm.

stipitate, oblong, 2–2.5 mm.

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

1 or 2, yellow, ellipsoid, 1–1.5 mm, smooth, lustrous.

= 16.

= 14.