Flora of North America species comparison

erect to ascending, branched.

arching, virgate, branched.

petiole 3–5 mm;

blade bicolorous, elliptic to obovate, 3–10 × 0.5–4 cm, chartaceous, base cuneate, margins serrate distally from middle, venation pinnate craspedodromous, secondary veins prominent, apex acute to obtuse, abaxial surface lanate to tomentose, glabrous, or pubescent, adaxial glabrous.

petiole 2–7 mm;

blade ovate or rhombic-ovate to obovate, 3–5 × 2–3 cm, membranous, base cuneate to obtuse, margins crenate to coarsely serrate on distal 1/2–3/4, irregularly doubly serrate, or, sometimes, 3–5 lobed (especially long shoot leaves), venation suprabasal actinodromous, secondary veins not prominent, apex acute, surfaces glabrous.

mostly terminal, conic panicles, [5–]8–25 × 3–6[–10] cm height 2–4 times diam. branches glabrous or glabrescent to tomentose.

mostly axillary (borne profusely along branches), corymbiform or hemispheric panicles, 3–6 × 3–6 cm;

branches glabrous.

1–3 mm, glabrous or tomentose.

5–10 mm, glabrous.

2–4 mm diam.;

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

sepals ovate, 1 mm;

petals light to dark pink, ovate to obovate, 1–2 mm;

staminodes 0;

stamens 25–35, 2–3 times petal length.

7–10 mm diam.;

hypanthia campanulate, 1–1.5 mm, surfaces glabrous;

sepals triangular, 1–1.5 mm;

petals white to cream, orbiculate, 2–3 mm;

staminodes 10–16, mostly distinct;

stamens 20–25, 0.5 times petal length.

oblanceoloid, 2.5–3 mm, shiny, glabrous, adaxial suture sometimes ciliate.

falcate, 2–3 mm, glabrous.