Flora of North America species comparison

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

erect to ascending, branched, 1.4–6(–8) dm, glabrous.

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 0.5–6.5 cm;

blade narrowly triangular, oblong-triangular, to almost deltate, 1.7–7.5(–9) × 0.8–3.5 cm, base subtruncate to broadly cuneate, often subhastate, margins coarsely laciniate-dentate or sinuate-dentate, apex acute to acuminate.

lateral glomerules sessile on lateral branched spikes;

glomerules subglobose, 3–4 mm diam.;

bracts oblanceolate to linear, 0.2–1.5 cm.

glomerules in axils of leaflike bracts;

glomerules globose, 3–8 mm diam.;

bracts leaflike throughout inflorescence;

flowers maturing from base to apex.

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 3(–4), connate only at base or connate into irregular lobes;

lobes obovate, 0.5–0.7 × 0.3–0.7 mm, apex rounded, not keeled, glabrous, becoming red, enlarged, and fleshy in fruit;

stamens usually 1;

stigmas 2, 0.5 mm.

ovoid;

pericarp adherent, dark reddish brown, fleshy, smooth.

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

seed coat black, smooth.

round, 1–1.2 mm diam., margins rounded with an incised groove;

seed coat dark red-brown, minutely reticulate-punctate.

ovoid;

pericarp nonadherent, reticulate-punctate.