Flora of North America species comparison

branching, diffuse or procumbent, softly scurfy-tomentose.

many, subsessile or very short petiolate;

blade subconcolorous, lanceolate to oblong, elliptic, or oval, (8–)10–30(–40) × 3–12(–15) mm, margin sharply dentate to entire.

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.

in glomerules in terminal spikes or panicles 3–20 cm, or reduced to solitary, rounded, terminal glomerule.

in small clusters, axillary.

brown, 1–1.3(–1.5) mm.

broadly elliptic;

radical lateral, erect.

bracteoles sessile or subsessile (stipe to 1 mm), cuneate-orbicular to obovate, somewhat compressed, 2.1–3.5 × (1.7–)2–3.7 mm, united 1/2 of length, margin sharply and often slenderly toothed beyond middle, faces often rather strongly veined, smooth or with 1 or more slender or flattened appendages.

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.

= 18.