Flora of North America species comparison

erect to prostrate, much-branched, 0.1–3.5 dm, glabrous.

erect, much-branched, 4–10 dm, farinose.

nonaromatic;

petiole to 0.28 cm;

blade deltate or narrowly deltate, 0.8–6 × 0.2–3.5 cm, base cuneate, margins entire or broadly dentate, apex acute to obtuse.

non-aromatic;

petiole 0.4–1.5 cm;

blade rhombic-ovate to narrowly rhombic-ovate or narrowly ovate, 1.2–3.4 × 0.4–1.4 cm, thick, base cuneate, margins usually with pair of basal, upwardly pointing lobes, apex broadly acute to mucro, densely farinose abaxially.

lateral glomerules sessile on lateral branched spikes;

glomerules subglobose, 3–4 mm diam.;

bracts oblanceolate to linear, 0.2–1.5 cm.

glomerules in terminal and axillary panicles;

glomerules maturing irregularly;

bracts leaflike or linear, 2 × 0.1 mm.

perianth segments 3, connate almost to apex into 0.5–0.8 mm tube;

lobes deltate, 0.1–0.5 × 0.3–0.4 mm, membranous, apex acute, flat or occasionally keeled-corniculate, glabrous, green and covering fruit at maturity;

stamen 1;

stigmas 2, 0.2 mm.

perianth segments 5, distinct nearly to base;

lobes ovate, 0.6–1 mm, apex rounded, slightly keeled abaxially, densely farinose, covering fruit at maturity;

stamens 5;

stigmas 2, 0.3–0.5 mm.

vertical and horizontal, ovoid, 0.6–0.9 mm diam., margins rounded;

seed coat black, smooth.

oblong-ovoid, 1–1.2 mm, margins acute;

seed coat black, fine-rugulate.

ovoid;

pericarp nonadherent, reticulate-punctate.

ovoid;

pericarp nonadherent, smooth.