Flora of North America species comparison

erect or semierect, branched, 1–5.5 dm, glabrous or sparsely farinose.

erect, much-branched from shortly above base, 3–6.5 dm, glabrate or sparsely and finely farinose;

branches ascending to spreading.

nonaromatic;

petiole to 1 cm;

blade linear, 1-veined, 1–3(–5) × 0.1–0.2(–0.4) cm, somewhat fleshy, base cuneate, margins entire, apex acute to acuminate, glabrous.

nonaromatic;

blade linear, 1-veined, 1–3.5 × 0.1–0.3 cm, somewhat fleshy, cuneate, margins entire, apex obtuse to acute, glabrate or sparsely farinose abaxially.

glomerules in terminal and axillary panicles, 6–25 × 5–20 cm, widely spaced, maturing at different times;

bracts variable.

glomerules in terminal and axillary panicles or cymes of spikes, 4–9 × 5–9 cm;

glomerules widely spaced, maturing irregularly;

bracts leaflike.

perianth segments 5, connate into 0.3–0.4 mm tube;

lobes ovate or orbicular-obovate, 1–1.4 mm, apex obtuse or rounded, cucullate, carinate, sparsely farinose, largely covering fruit at maturity;

stamens 5;

stigmas 2, 0.1 mm.

perianth segments 5, distinct nearly to base;

lobes ovate, 0.9–1.1 × 0.9–1.1 mm, apex acute to rounded, carinate, slightly farinose, completely enclosing fruit;

stamens 5;

stigmas 2, 0.1 mm.

ovoid;

pericarp nonadherent, smooth.

ovoid;

pericarp adherent, black, finely tuberculate.

ovoid, 1.2–1.6 mm diam., margins obtuse with narrow rim;

seed coat black, smooth, shiny.

round, 1.4–1.6 mm diam., margins rounded;

seed coat black, rugulate.

= 18.

= 18.