Flora of North America species comparison

erect to prostrate, much-branched, 0.1–3.5 dm, glabrous.

erect to ascending, usually much-branched, 0.2–0.7(–10) dm, densely farinose.

nonaromatic;

petiole to 0.28 cm;

blade deltate or narrowly deltate, 0.8–6 × 0.2–3.5 cm, base cuneate, margins entire or broadly dentate, apex acute to obtuse.

non-aromatic;

petiole 0.5–2(–3) cm, shorter than or equaling leaf blades;

blade ovate to rhombic-ovate, 1–3.5(–4.5) × 1–3(–4) cm, base broadly cuneate to abruptly truncate, distinctly 3-lobed, margins dentate to ± entire, apex obtuse (rarely subacute), grayish, usually densely farinose on both surfaces.

lateral glomerules sessile on lateral branched spikes;

glomerules subglobose, 3–4 mm diam.;

bracts oblanceolate to linear, 0.2–1.5 cm.

glomerules in terminal and lateral compound spikes, 2–19 cm;

glomerules subglobose, 3–4 mm diam.;

bracts absent.

perianth segments 3, connate almost to apex into 0.5–0.8 mm tube;

lobes deltate, 0.1–0.5 × 0.3–0.4 mm, membranous, apex acute, flat or occasionally keeled-corniculate, glabrous, green and covering fruit at maturity;

stamen 1;

stigmas 2, 0.2 mm.

perianth segments 5, distinct nearly to base;

lobes ovate, ca. 1 × 1.1 mm, apex obtuse, densely farinose, keeled, covering fruit at maturity;

stamens 5;

stigmas 2, 0.2 mm.

vertical and horizontal, ovoid, 0.6–0.9 mm diam., margins rounded;

seed coat black, smooth.

lenticular to compressed-subglobose, 0.8–1.25 mm diam.;

seed coat black, smooth or faintly reticulate.

ovoid;

pericarp nonadherent, reticulate-punctate.

depressed-ovoid;

pericarp nonadherent, smooth to indistinctly granulate.

= 54.