Flora of North America species comparison

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

erect to spreading, branched from base or simple, 0.6–7.5 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.

nonaromatic;

petiole 0.5–1 cm;

blade broadly triangular to broadly ovate, distal leaves narrowly triangular to narrowly ovate, 1–1.5(–2.3) × 0.5–1.6 cm, thin or thick, base cuneate to subtruncate, margins usually with two basal teeth or lobes, teeth or lobes acute to acuminate, obtuse, or rounded, apex rounded, obtuse, or acute, 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 lateral panicles, 3.5–12 × 1–7 cm;

glomerules maturing mixed;

bracts absent.

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, 0.8–1.1 × 0.7–1 mm, apex acute to obtuse, keeled or not, farinose, completely covering fruit at maturity;

stamens 5;

stigmas 2, 0.2 mm.

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

seed coat black, smooth.

round, 0.9–1.25 mm diam., margins rounded with a narrow rim;

seed coat dark black, wrinkled.

ovoid;

pericarp nonadherent, reticulate-punctate.

ovoid;

pericarp nonadherent, smooth.

= 18.