Flora of North America species comparison

erect to more often spreading, usually branched from base, 1–1.4(–6) dm, densely farinose.

erect to ascending, branched at apex of taproot, 2.5–8 dm, somewhat viscid and farinose.

nonaromatic;

petiole 0.3–0.4 cm;

blade linear, narrowly lanceolate, oblong elliptic, or ovate-lanceolate, 3- (occasionally 1-)veined, 1.5–2.5 × 0.4–0.6 cm, 3–many times as long as wide, thick and somewhat fleshy, base cuneate, margins entire, unlobed, apex acuminate, densely white-farinose abaxially, more sparsely farinose adaxially.

nonaromatic;

petiole 1–12 cm;

blade triangular, 4.5–10 × 3–9 cm, base truncate to cordate, margins sinuate-dentate, apex acute to acuminate, sparsely farinose.

glomerules in terminal and axillary panicles;

glomerules ± densely packed, flowers maturing irregularly;

bracts leaflike or absent.

dense glomerules sessile on terminal spikes;

spikes 5–19 cm;

glomerules 3–5 mm diam., flowers developing at about same time;

bracts leaflike, subtending lower glomerules, absent for over 1/2 inflorescence, triangular, broadly hastate, 1–3.5 × 0.8–4 cm, apex acuminate, base truncate to hastate, sparsely farinose.

perianth segments 5, distinct nearly to base;

lobes obovate, 0.8–1 mm, apex obtuse, carinate, densely farinose, enclosing fruit at maturity;

stamens 5;

stigmas 2, 0.1 mm.

perianth segments connate into 0.5–0.9 mm tube, lobes oblong or elliptic, 0.6–0.9(–1.1) × 0.4–1.2 mm, apex obtuse, rounded or truncate, scarcely abaxially keeled throughout, glabrous, not covering fruit at maturity;

stamens (4–)5;

stigmas 2.

obovoid;

pericarp adherent, ± smooth.

ovoid, 8–1.1 mm diam., margins rounded;

seed coat black, warty.

obovoid or rotund, 1.5–2 mm in diam., margins rounded;

seed coat black, rugose.

ovoid;

pericarp nonadherent, smooth.

= 18.