Flora of North America species comparison

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

erect, 2.3–5.2 dm, sparsely pubescent with short hairs, these rarely with gland heads.

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).

aromatic;

petiole to 1.3 mm;

blade 1.7–4.5 × 0.7–2.6 cm, base cuneate, margins pinnatifid or entire (in distal leaves), apex acute to acuminate, mucronate, with sessile glands adaxially.

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.

terminal compound cymes, 8.5–22 cm;

bracts leaflike, lanceolate, 2.1–10.3 × 0.1–0.6 mm, generally absent in fruit.

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.

perianth segments 5, distinct nearly to base, distinct portion ovate, with large single tubercle abaxially near apex, 0.5–0.7 × 0.35–0.6 mm, apex acuminate, with sessile golden glands, covering seed at maturity;

stamens 1(–2);

stigmas 2.

ovoid;

pericarp nonadherent, smooth, glandular.

subglobose;

pericarp adherent, membranaceous, papillose, becoming rugose, usually white-blotchy.

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

seed coat smooth.

subglobose, 0.6–0.9 × 0.5–0.7 mm, margins rimmed;

seed coat rugose.