Flora of North America species comparison

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

strictly erect, simple or branching above, 2–8 dm, moderately 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 0.4–1 cm;

blade linear to narrowly lanceolate, or oblong-elliptic, (1- or)3-veined, 1.5–4.2(–6) × 0.4–1(–1.4) cm, thick and somewhat fleshy, base cuneate, margins entire or with pair of lobes near base, apex acute, abaxial surface densely to sparingly white-mealy.

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, 1–13 × 0.15–0.5 cm;

glomerules usually densely disposed, 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 (4–)5, distinct nearly to base;

lobes oblong-ovate, 0.8–1 × 0.5–0.7 mm, apex obtuse, rounded or emarginate, strongly keeled along midvein, densely farinose, usually spreading from fruit;

stamens (4–)5;

stigmas 2, 0.2 mm.

ovoid;

pericarp nonadherent, smooth.

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

seed coat black, smooth, shiny.

round, 0.9–1.3 mm diam., margins rounded;

seed coat black, rugulate.

ovoid;

pericarp nonadherent, smooth.

= 18.

= 18.