Flora of North America species comparison

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

erect, much-branched, 4–10 dm, 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.

non-aromatic;

petiole 0.4–1.5 cm;

blade rhombic-ovate to narrowly rhombic-ovate or narrowly ovate, 1.2–3.4 × 0.4–1.4 cm, thick, base cuneate, margins usually with pair of basal, upwardly pointing lobes, apex broadly acute to mucro, 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 panicles;

glomerules maturing irregularly;

bracts leaflike or linear, 2 × 0.1 mm.

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, 0.6–1 mm, apex rounded, slightly keeled abaxially, densely farinose, covering fruit at maturity;

stamens 5;

stigmas 2, 0.3–0.5 mm.

ovoid;

pericarp nonadherent, smooth.

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

seed coat black, smooth, shiny.

oblong-ovoid, 1–1.2 mm, margins acute;

seed coat black, fine-rugulate.

ovoid;

pericarp nonadherent, smooth.

= 18.