Flora of North America species comparison

spreading to ascending, branched.

arching, branched.

petiole 1–4 mm;

blade ovate to elliptic, 1–4 × 1–2(–3) cm, chartaceous, base usually obtuse, sometimes acute, margins crenate to serrate distally from middle, venation pinnate craspedodromous, secondary veins prominent, apex usually obtuse, sometimes acute, abaxial surface glabrous or puberulent, adaxial glabrous.

sometimes partly persistent;

petiole 3–10 mm;

blade rhombic-lanceolate, 2–7 × 0.5–2 cm, membranous to chartaceous, base cuneate to obtuse, margins coarsely serrate or irregularly 3-fid to slightly lobed distally, venation pinnate simple craspedodromous, secondary veins not prominent, apex acute, abaxial surface blue-green, glaucous, glabrous, adaxial dark green, glabrous.

mostly terminal, corymbiform or hemispheric panicles, 100–1000+-flowered, 2–4 × 2–4 cm height 0.8–1 times diam.;

branches glabrous or puberulent.

mostly axillary, corymbiform or hemispheric panicles, 2–5 × 2–5 cm;

filiform bractlets sometimes present at base;

branches glabrous or pubescent.

1–3(–5) mm, glabrous or puberulent.

10–20 mm, glabrous or pubescent.

2–4 mm diam.;

hypanthia hemispheric, 0.5–1.1 mm, abaxial surface glabrous or pubescent, adaxial pubescent;

sepals triangular, 0.8–1 mm;

petals light to dark pink, ovate to obovate, 1–2.5 mm, veins prominent;

staminodes 5–10, reduced, fused, appearing as scalloped ring;

stamens 35–40, 2 times petal length.

often double-flowered, usually distinct, 10–15 mm diam.;

hypanthia campanulate to turbinate, 3–5 mm, abaxial surface glabrous or sparsely hairy, adaxial glabrous;

sepals deltate, 1–1.5 mm;

petals white, elliptic to orbiculate, 2–4 mm;

staminodes 10–12;

stamens 20–28, 0.5–1 times petal length.

oblanceoloid, 2–3 mm, shiny, glabrous, adaxial suture sparsely ciliate.

inflated cymbiform, 0.5–2 mm, glabrous.