Flora of North America species comparison

stiffly erect;

branchlets terete.

erect and ascending, sparsely branched or simple, obtusely angled, 1.5–10(–15) dm, stout, scurfy when young.

tardily deciduous, alternate or proximal-most subopposite, shortly petiolate;

blade gray green, oblong-ovate to elliptic or orbiculate, 8–30(–35) × 6–20 mm, margin entire or rarely dentate, apex rounded to retuse or obtuse.

sessile or short petiolate;

blade white abaxially, green adaxially, linear to lanceolate, elliptic, or oblong, 15–75 × (1–)3–25 mm, thin, base cuneate to long attenuate, margin coarsely sinuate-dentate or entire, apex rounded to acute, mucronate, densely scurfy and pale abaxially, green and glabrous adaxially.

yellow, in clusters 2–3 mm wide, borne in panicles 6–30 cm.

in glomerules, forming slender, usually dense, naked terminal narrowly paniculate spikes, panicles 6–30 cm;

glomerules beadlike, small, 2–3 mm thick;

calyx 5-cleft.

in small, very numerous glomerules in axils of elongated, terminal leafy-bracteate spikes or finally paniculate.

in few-flowered axillary clusters.

brown, 2.4–2.8 mm.

pale brown, 1 mm.

bracteoles sessile or substipitate, 4–5 × 5–9 mm, base broadly cuneate, margin sharply toothed, apical tooth subtended by 2–6 equal or smaller teeth, faces smooth or rarely tuberculate.

bracteoles short stipitate, cuneate-orbiculate or broadly cuneate, compressed, 2–2.5 mm, united basally, apex rounded, acutely 5-dentate, faces 3-veined, usually unappendaged, rarely obscurely tuberculate.