Flora of North America species comparison

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

erect to ascending, much-branched, 1.2–3.5 dm, glabrous to sparsely 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 0.2–1 cm;

blade rhombic-ovate to elliptic or oblong, 3-veined, 0.5–2 × 0.3–1 cm, base cuneate, margins entire or occasionally with few teeth or lobes, apex rounded or obtuse, sparsely farinose.

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

bracts variable.

glomerules in terminal panicles, 5–29 × 8–27 cm;

glomerules small, maturing mixed;

bracts linear.

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 to oblong, slightly keeled, 0.6–0.7 × 0.3–0.5 mm, apex acute to obtuse, glabrous, irregularly covering fruit at maturity;

stamens 5;

stigmas 2, 0.2 mm.

ovoid;

pericarp nonadherent, smooth.

ovoid;

pericarp adherent, warty, smooth.

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

seed coat black, smooth, shiny.

0.7–0.8 × 0.4–0.5 mm, margins rounded;

seed coat black, smooth.

= 18.