Flora of North America species comparison

slender to stout, mainly 1–5(–7) dm, branching almost throughout;

herbage pubescent with scurfy and arachnoid hairs.

on petioles 0.3–2.5(–3.5) cm proximally, becoming subsessile (rarely sessile) or more commonly short petiolate distally, blade conspicuously 3-veined, deltoid-ovate to orbicular-ovate or cordate-ovate to elliptic, 5–25(–35) mm and about as wide, base acute or cuneate to obtuse or subcordate, scurfy.

alternate, proximalmost on petioles (3–)5–30 mm, becoming subsessile or short petiolate distally;

blade 3-veined, ovate to rhombic or orbiculate to elliptic, 0.4–5 × 0.2–3 cm, base rounded to cuneate, margin entire, apex acute to obtuse.

of both sexes intermixed in axillary glomerules, or borne on separate plants.

5-merous.

with calyx 4–5-lobed.

yellowish brown or greenish, 1–1.5(–2) mm.

greenish, yellowish, or brown, 0.9–2 mm;

radicle superior.

bracteoles sessile, oval to obovate, 1.5–5.5  1.5–5 mm, apical tooth central to 2 rounded lobes, sometimes constricted basally, giving an overall violin shape, sometimes slenderly appendaged marginally and faces often obscured by appendages.

bracteoles sessile, ovate to oblong or broadly cuneate or pan-duriform, 1.5–5.5 × 1.5–5 mm, thick, united to apex, apex truncate to cuspidate or tridentate, surfaces with thickened processes or rarely smooth.

= 18.