Flora of North America species comparison

simple or branched, erect.

usually branched from base, erect or reclining.

blades elliptic to broadly elliptic, widest near middle, 1.8-9 × 1.2-4.5 cm, base cuneate, margins coarsely serrate, serrations often with lateral lobes, apex acute;

cystoliths rounded.

blades narrowly ovate to orbiculate, distal blades sometimes lanceolate, 2-8 × 1-6 cm, base nearly cordate to rounded, sometimes cuneate in distal leaves, margins serrate, apex rounded to acute;

cystoliths rounded or ± elongate.

spikelike or paniculate.

± globose cymes.

unisexual, staminate and pistillate in same inflorescence, subsessile to short-pedunculate.

unisexual, staminate and pistillate intermixed in same inflorescence, sessile to short-pedunculate.

outer tepals ovate, 0.5-0.7 mm, inner tepals broadly ovate, 0.6-0.9 × 1.2-1.4 mm.

outer tepals linear, 0.4-0.8 mm, inner tepals ovate, 1.4-2 × 1-1.4 mm.

ovoid, 1.5-1.8 × 1.1-1.3 mm.

ovoid to broadly ellipsoid, 1.2-1.4(-1.6) × 0.8-1 mm.

= 24, 26.

= 26.