Flora of North America species comparison

erect to ascending, branched, 3–5.5 dm, pilose with glandular trichomes or sessile glands.

erect to ascending, branched, 3.7–7.5(–10) dm, ± glandular-pubescent, puberulent, or glabrate.

aromatic;

petiole 0.5–1.4 cm;

blade ovate to broadly ovate, 0.9–1.6 × 0.8–1.4 cm, somewhat reduced in inflorescence, base cuneate to truncate, apex acute, glandular-puberulose and pilosulose on veins.

malodorous, distal leaves sessile;

petiole 1.4 mm;

blade narrowly ovate to lanceolate, 5–7 × 1.5–3 cm, base cuneate, margins dentate with large, widely spaced teeth, apex acute, gland-dotted (rarely nearly glabrous).

axillary glomerules;

glomerules subglobose, 1.5–2.5 mm diam.;

bracts leaflike, ovate, 3–5 mm, margins crenate-dentate, apex acute.

terminal and lateral spikes or panicles, 3–8 cm;

glomerules globose, 2.5–3.3 mm diam.;

bracts absent or leaflike, linear, to 2.2 mm, apex acute.

perianth segments 5, distinct nearly to base, distinct portions narrow-oblong, prominently keeled especially apically, 0.8–0.9 × 0.3–0.4 mm, apex acute, not crested, covered with septate hairs, becoming coriaceous and white in fruit;

stamens absent or 1;

stigmas 2.

perianth segments 5, connate for ca. 1/2 their length, distinct portion ovate, 0.7 mm, apex obtuse, rounded abaxially, glabrous, covering fruit at maturity;

stamens 5;

stigmas 3.

ovoid;

pericarp adherent, membranaceous, slightly rugose.

ovoid;

pericarp nonadherent, smooth, glandular.

reddish brown, ovoid, 0.6 × 0.3–0.4 mm, margins keeled over radicle and channeled over cotyledons;

seed coat smooth.

horizontal or vertical, reddish brown, ovoid, 0.6–0.8 × 0.8–1 mm;

seed coat smooth.