Flora of North America species comparison

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

erect to ascending, sparsely branched, 2.5–5 dm, sparsely 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.

nonaromatic;

petiole 0.5–1.3 cm;

blade triangular to ovate or rhombic-ovate, 0.7–2.9 × 0.4–2.1 cm, apex apiculate, base broadly cuneate to truncate, subhastate with low, rounded or acutish lobes, margins entire above lobes, apex acute to obtuse, sparsely 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 paniculate spikes, 21–24 × 4–9 cm;

glomerules maturing irregularly;

bracts leaflike to linear.

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, 0.7–1 × 0.7–0.9 mm, apex obtuse, keeled, densely to sparsely farinose, partly covering seeds at maturity;

stamens 5;

stigmas 2, 0.2–0.3 mm.

ovoid;

pericarp adherent, black, honeycombed.

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

seed coat black, smooth.

lenticular or round, 1–1.3 mm diam., margins acute;

seed coat coarsely honeycombed.

ovoid;

pericarp nonadherent, reticulate-punctate.