Flora of North America species comparison

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

erect to ascending, sparsely branched, 2.5–5 dm, 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.

nonaromatic;

petiole 0.5–1.3 cm;

blade triangular to ovate or rhombic-ovate, 0.7–2.9 × 0.4–2.1 cm, apex apiculate, base broadly cuneate to truncate, subhastate with low, rounded or acutish lobes, margins entire above lobes, apex acute to obtuse, sparsely farinose abaxially.

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

bracts variable.

glomerules in paniculate spikes, 21–24 × 4–9 cm;

glomerules maturing irregularly;

bracts leaflike to 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, 0.7–1 × 0.7–0.9 mm, apex obtuse, keeled, densely to sparsely farinose, partly covering seeds at maturity;

stamens 5;

stigmas 2, 0.2–0.3 mm.

ovoid;

pericarp nonadherent, smooth.

ovoid;

pericarp adherent, black, honeycombed.

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

seed coat black, smooth, shiny.

lenticular or round, 1–1.3 mm diam., margins acute;

seed coat coarsely honeycombed.

= 18.