Flora of North America species comparison

erect to prostrate, branched from base, 0.5–2.5(–4) dm, farinose.

erect to ascending or decumbent, branched from base, 1.5–10 dm, glabrous.

nonaromatic;

petiole to 1 cm;

blade lanceolate to oblong or ovate, 0.5–4 × 0.3–1.5 cm, base cuneate, margins undulate-dentate, teeth obtuse or acute, apex obtuse or acute, densely farinose, glaucous abaxially.

non-aromatic;

petiole 1.5–10 cm;

blade lanceolate, ovate, triangular, or triangular-hastate, 2.5–10 × 1–9 cm, base cuneate, truncate, or hastate, margins sharply dentate or entire, apex acute to acuminate.

glomerules in terminal or lateral spikes, 5–10 cm;

glomerules subglobose, 1.8–2.5 mm diam.;

bracts leaflike in inflorescence, elliptic, 0.2–1 × 0.1–0.5 cm, or absent at least in terminal 1/2 of inflorescence.

glomerules sessile on unbranched terminal spikes;

spikes 5–20 cm;

glomerules globose, 3–10 mm diam.;

bracts leaflike, present only at base of inflorescence;

flowers maturing from apex to base.

perianth segments 3–4;

lobes obovate to oblong, 0.5–0.7 × 0.4–0.5 mm, apex obtuse, rounded, not keeled, covering fruit at maturity;

stamen 1;

stigmas 2.

perianth segments 3, connate only at base, lobes lanceolate to ovate, 0.6–0.9 × 0.4–0.5 mm, apex acute, not keeled, glabrous, covering fruit at maturity, often becoming fleshy and red in fruit;

stamens 3;

stigmas 2, 0.1–0.4 mm.

ovoid, fleshy or not;

pericarp adherent, bright red to dark reddish brown or greenish red, smooth.

mostly horizontal, some vertical, margins rounded; vertical seeds ovoid to round, 0.6–1.1 mm diam.; horizontal seeds round, 0.6–1.1 mm diam.;

seed coat reddish brown, rugose-punctate.

0.7–1.2 mm in diam., margins rounded;

seed coat black, reticulate-punctate.

ovoid;

pericarp nonadherent, smooth.

= 18.

= 18.