Flora of North America species comparison

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

erect or occasionally semierect, usually branching from base, 1–4 dm, farinose to densely farinose.

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;

petiole to 0.5 cm;

blade linear, 1-veined, 0.7–2.6(–3) × 0.1–0.3 cm, usually somewhat fleshy, base cuneate, margins entire, apex obtuse, densely 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 panicle;

glomerules widely spaced, maturing irregularly;

bracts leaflike in proximal part of inflorescence and linear to 2 × 0.1 mm on terminal branches.

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 lanceolate to elliptic, 0.8–1 × 0.5–0.6 mm, apex obtuse to rounded, prominently keeled abaxially, densely farinose, covering fruit at maturity;

stamens 5;

stigmas 2, 0.1 mm.

ovoid;

pericarp nonadherent, smooth.

ovoid;

pericarp adherent, smooth.

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

seed coat black, smooth, shiny.

ovoid, 0.9–1.1 mm diam., margins round;

seed coat black, finely rugulate.

= 18.

= 18.