Flora of North America species comparison

stiffly erect;

branchlets terete.

branching, diffuse or procumbent, softly scurfy-tomentose.

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.

alternate;

petiole to 1/2 as long as blade;

blade obovate or rhombic to deltoid, 10–30 mm, base obtuse, margin sinuate to serrate, apex irregularly toothed, acute.

in axillary glomerules, staminate in distal axils surrounded by pistillate flowers, these only and usually few together in most axils, very small and globular at anthesis.

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

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

brown, 2.4–2.8 mm.

broadly elliptic;

radical lateral, erect.

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, obovoid-globular, fused, scarcely compressed, 8–12 mm, of loosely fibrous and spongy consistency, with thin membranous epidermis and thin, inner membrane, opening at summit closed by 2 erect, appressed, entire or 3-toothed valves, apex shortly apiculate, not flattened at top.