Flora of North America species comparison

stiffly erect;

branchlets terete.

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.

opposite or subopposite proximally, or some alternate distally;

petiole 2–6 mm;

blade yellow green, ovate to obovate, elliptic, or orbiculate, 8–55 × 6–32 mm, base obtuse to cuneate, margin entire or repand-dentate, apex rounded to acute, sparingly scurfy.

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

brown to tan or yellow, in clusters 2–4 mm wide, on panicles 2–10(–15) cm.

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

in spikes or spicate panicles 4–30 cm.

brown, 2.4–2.8 mm.

brown, 2 mm wide.

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 sessile or on stipes to 7 mm, body 4-winged, 6–10 mm and wide, toothed apically, surface smooth, reticulate, or with flattened processes, wings 3–4 mm wide.

= 18.