Flora of North America species comparison

erect to arching, branched.

erect to spreading, 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 2–5 mm;

blade elliptic to obovate, 2–6(–9) × 0.5–4 cm, chartaceous, base cuneate, margins doubly serrate distally from middle, venation pinnate craspedodromous, secondary veins prominent, apex acute to obtuse, abaxial surface puberulent to pubescent, 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, hemispheric to obconic panicles, 5–15 × 3–10 cm height 1–1.5 times diam.;

branches pubescent.

1–3 mm, glabrous or glabrate.

1–3 mm, pubescent.

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.

2–4 mm diam.;

hypanthia hemispheric, 1 mm, abaxial surface tomentose, adaxial pubescent;

sepals ovate, 1.5–2.5 mm;

petals white to pink, ovate to obovate, 1.5–2.5 mm;

staminodes 10–15;

stamens 20–30, 2 times petal length.

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

oblanceoloid, 1.5–2 mm, shiny, glabrous.

= 36.

= 36.