Flora of North America species comparison

prostrate, ascending, or erect, branched.

ascending, branched from slender, rhizomatous crown.

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 or lanceolate, 0.5–2 cm, margins entire proximally, 1–3-toothed distally, apex acuminate or acute;

petiole 1.5–10 cm;

petiolules to 1 mm;

leaflets 3, blades obovate or elliptic, 0.5–4.2 × 0.3–2.5 cm, base cuneate, veins fine or slightly thickened, margins serrulate, apex acute, rounded, or retuse, apiculate, surfaces appressed-pubescent.

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, 6–30-flowered, globose, 2.3–3.1 × 2–3 cm, rachis prolonged beyond flowers;

involucres absent.

0.5–1.5 cm.

bent proximal to flowers, inflorescence appearing inverted, 2.5–12 cm.

slightly reflexed, to 0.5 mm;

bracteoles cup-shaped, membranous, 0.2 mm.

reflexed in fruit, 1.5–2 mm;

bracteoles minute, scalelike, membranous, to 0.3 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.

13–17 mm, sweetly fragrant;

calyx campanulate, 4.5–5 mm, appressed-pubescent, veins 5, tube 2 mm, lobes subequal, linear, orifice open;

corolla white, sometimes with purplish or buff-pink veins, 12–15 mm, banner elliptic, 12–15 × 4 mm, longer than wing and keel petals, apex tapered, sometimes retuse.

ovoid to globose, 2–3 mm.

oblong to subglobose, 5 mm.

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

1 or 2, dark brown, ± globose, 1.2 mm, smooth.

= 16.

= 16, 32.