Flora of North America species comparison

erect to arching, branched.

erect to ascending or spreading, rarely branched.

petiole 3–8 mm, sparsely hairy;

blade ovate to elliptic or suborbiculate, 2–10 × 1–2.5 cm, coriaceous, base obtuse, rounded, or subcordate, margins irregularly, coarsely and sharply doubly serrate from midpoint to apex, teeth acute and mucronate, number of primary and secondary serrations 1 times number of secondary veins (excluding inter-secondary veins), venation pinnate cladodromous, secondary veins not prominent, apex acute, obtuse, or rounded, abaxial surface mostly glabrous, adaxial glabrous.

petiole 2–6 mm;

blade narrowly rhombic to rhombic or lanceolate to narrowly elliptic, usually widest at middle, 3–7 × 1–3 cm, length 3–5 times width, chartaceous, base acute, margins sharply serrate to serrulate nearly to base, number of primary and secondary serrations 1 times number of secondary veins (excluding inter-secondary veins), venation pinnate craspedodromous, secondary veins not prominent, regularly terminating in primary teeth, inter-secondary veins usually 1–4 per leaf, apex acute, abaxial surface mostly puberulent, adaxial glabrous.

mostly terminal, corymbiform, 2–5 × 3–10 cm height 0.4–1.1 times diam.;

branches rarely in axils of leaves, glabrous or glabrate.

mostly terminal, cylindric to obconic panicles, 5–10 × 2–4 cm height 2–5 times diam.;

branches sometimes in axils of leaves, puberulent or glabrous.

1–3 mm, glabrous or glabrate.

3–6 mm, puberulent or glabrous.

4–7 mm diam.;

hypanthia hemispheric, 0.8–1 mm, abaxial surface glabrous or pubescent, adaxial glabrous;

sepals triangular, 0.5–1 mm;

petals chalky white to pink, orbiculate, 1.3–1.5 mm;

staminodes 5–15 reduced to serrations;

stamens 15–20, 2 times petal length.

4–7(–10) mm diam.;

hypanthia hemispheric, 0.8–1 mm, abaxial surface glabrous or sparsely puberulent, adaxial glabrous;

sepals ovate, 0.8–1 mm;

petals pink, elliptic to widely obovate, 1.8–2 mm;

staminodes 0;

stamens 28–32, 2 times petal length.

nearly fusiform, 2–3 mm, shiny, glabrous.

oblanceoloid, 4 mm, glabrous, adaxial suture glabrous or ciliate.

= 36.