Flora of North America species comparison

simple or more commonly branched throughout, mainly 2–8(–10) dm, branches mostly obtusely angled;

herbage scurfy, becoming glabrate.

alternate or proximalmost opposite, short petiolate proximally, sessile and often cordate-clasping distally;

blade ovate to deltoid or oval, 4–30(–40) × 3–30 mm, base truncate or subhastate to rounded, margin entire or dentate, apex acute to obtuse.

persistent, alternate, petiolate;

blade greenish to silvery white, orbiculate to reniform or oval, 10–40 mm, as wide or wider, prominently dentate, teeth to 10 mm, permanently scurfy.

in axillary glomerules.

in glomerules mainly in distal axils;

sepals 3–5.

yellow to purple-brown, in clusters 3–4 mm thick, borne in panicles to 3 cm.

borne in inflorescences similar to staminate ones.

brown, 1–2 mm wide.

brown, 2 mm wide;

radicle sublateral.

bracteoles scarcely compressed, 2–3 mm and as wide, apex truncate to broadly rounded, with 3 (or more) teeth across summit, surfaces smooth (or rarely tuberculate).

bracteoles sessile, rather prominently veined, orbiculate to reniform, strongly compressed, 7–10 × 7–10 mm, thin, united at base, margin entire to crenate, glabrous, lacking processes.

= 18.

= 18.