Flora of North America species comparison

slender to rather coarse, initially erect-ascending, finally spreading-ascending, scurfy when young.

many, alternate, subsessile or short petiolate;

blade 1-veined, spatulate or obovate to oblong or elliptic, mainly 5–30(–40) × 2–9(–12) mm, base attenuate, margin remotely dentate to subentire, apex obtuse.

alternate except proximalmost ones, blade ovate to cordate-ovate, 5–15(–20) × 3–10(–13) mm;

base mostly cordate (to rounded), margin entire or denticulate, apex acute to attenuate, thickish and scurfy-tomentose.

of both sexes mixed in small axillary clusters.

in small, terminal, leaf-bracteate glomerules 1.5 mm wide.

in glomerules in distal axils, 4–5-merous.

solitary or in few-flowered clusters in almost all but distalmost leaves.

dimorphic: black, 1.5–1.7 mm, or brown, 2 mm.

deep red-brown, 1.5–1.8 mm.

bracteoles red-fleshy at maturity, sessile or short stipitate, strongly veined, rhombic, convex, 3–6.6 × 2.8–4.5 mm, united at base, margin toothed, apex obtuse to acute.

bracteoles sessile or subsessile, round-ovate (semi-orbiculate) to deltoid-rhombic or flabellate, slightly compressed, 3–5 mm and as broad, united to middle, deeply toothed, margin with acute teeth, terminal tooth subequal to others or largest, thin and soft at margin, hard at center, scarcely though sometimes tuberculate on faces.

= 18.

= 36, 54.