Flora of North America species comparison

erect, spreading, or clambering, much-branched, glabrous or sparsely villous.

with branches ascending, densely villous-sericeous.

opposite;

blade ovate to lanceolate, 3–14 × 1.5–7 cm, glabrous or villous.

alternate;

blade ovate, ovate-lanceolate, or ovate oblong, 7–25 × 3–9 cm, densely villous abaxially, glabrate.

panicles, 10–40 cm;

bracts and bracteoles 1/3–2/3 as long as tepals.

panicles 2–15 cm;

bracts and bractlets of staminate flowers less than 1/2 as long as tepals;

bracts and bracteoles of pistillate flowers nearly equaling tepals.

pedicellate;

tepals whitish to stramineous, oblong, 0.6–0.8 mm, hyaline, apex obtuse or rounded, densely villous.

tepals white, elliptic to oblong, staminate flowers 2–2.5 mm, pistillate flowers 1.5–1.9 mm, apex obtuse, densely villous.

0.5–0.7 mm.

1 mm.

included in tepals, greenish, ovoid, 0.6–0.8 mm, apex obtuse.

included in tepals, ovoid, apex rounded.