Flora of North America species comparison

obtusely angled, finely scurfy when young.

terete, finely white-mealy when young.

sessile or short petiolate;

blade paler abaxially, oblong or rhombic-ovate to broadly obovate or narrowly oblong or narrowly elliptic, 10–30 × (1–)3–15 mm, thin, base rounded to cuneate, margin repand-dentate or sinuate-dentate to undulate or distal ones or all of them entire, apex rounded to acute, mucronate, densely white scurfy abaxially, grayish green and usually glabrate adaxially.

alternate, petiolate proximally, becoming sessile distally, crowded;

blade oblanceolate or proximal rhombic, 10–20(–30) × 3–15 mm, base cuneate or attenuate, margin entire to repand-denticulate, apex acute to obtuse, scurfy.

in short, dense, naked terminal spikes or panicles;

calyx 5-cleft, lobes green keeled.

in axillary glomerules, in short axillary spikes or terminal spikes.

fascicled in axils.

axillary, solitary or few and clustered below staminate.

brown, 1–1.5 mm.

dimorphic: dark reddish brown, 1.5 mm wide, or black, slightly smaller;

radicle basal, horizontal.

bracteoles sessile or with stipes to 0.5 mm, broadly cuneate-orbiculate, compressed, (2–) 2.5–4.5 × (1.5–)2.6–5 mm, usually as broad as or broader than long, much thickened at maturity, united only at truncate or broadly cuneate base, margin deeply and acutely dentate, faces with 2, sometimes swollen, dentate crests or covered with irregular, conic-acute, corky tubercles, seldom smooth.

bracteoles sessile, bordered by narrow horizontal wing or acutely angled, broadly turbinate or hemispheric, united except at minute apical tips, 6–12 mm, spongy and inflated at maturity, flattened at summit.