Flora of North America species comparison

erect to arching, branched.

erect to ascending, 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 2–3 mm;

blade bicolorous, ovate-lanceolate, 3–6 × 1–2.5 cm, coriaceous, base cuneate, margins coarsely serrate to crenate on distal 3/4, (secondary teeth on large and long shoot leaves), venation pinnate craspedodromous, secondary veins prominent, apex acute or rounded, abaxial surface densely white to gray, tan, or rusty, tomentose, adaxial glabrous or puberulent.

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

branches rarely in axils of leaves, glabrous or glabrate.

predominantly terminal, narrow, conic panicles, 150–15,000+-flowered, 5–30 × 3–20 cm, branching varying from compact to wide and spreading;

branches tomentose.

1–3 mm, glabrous or glabrate.

0.1–1.5 mm, tomentose.

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.

4–6 mm diam.;

hypanthia hemispheric, 0.5–1 mm, abaxial surface tomentose, adaxial glabrous;

sepals triangular, 0.7–1.1 mm;

petals usually light to dark pink, sometimes white or purple, ovate to orbiculate, 1–1.5 mm;

staminodes 0;

stamens 15–20, 1 times petal length.

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

cymbiform, 2–2.5 mm, tomentose to arachnoid.

= 36.

= 24, 36.