Description

Key Characters:

Growth Form: Stems erect to ascending, much–branched to simple, 1–10.5 dm, farinose.

Stems:

Roots:

Leaves: Leaves simple. Alternate. Leaves nonaromatic; blade narrowly to broadly lanceolate, rhombic, ovate, or triangular, 1.2–12(–15) × 0.5–7.5(–9) cm. Apex acute to acuminate, farinose. Base cuneate to truncate. Margins serrate, irregularly dentate, or entire, often with 2 basal lobes. Petioles 0.2–9 cm. Stipules absent.

Flowers: Inflorescences glomerules in compound spikes, 5–17 cm; glomerules irregularly rounded, 4–7 mm diam.; bracts absent. Flowers bisexual. Flowers: perianth segments 5, distinct nearly to base; lobes ovate to deltate, 0.7–1.5 × 0.7–1.3 mm, apex obtuse, farinose, often prominently keeled, covering fruit at maturity or not; stamens 5; stigmas 2, 0.3–0.5 mm. Ovary superior; style 1 or absent; stigmas filiform.

Fruit: Achenes or utricles depressed-ovoid; pericarp adherent or nonadherent near stylar base; alveolate-rugose. Seeds round; 1–2 mm diam.; margins rounded; seed coat brown to black; honeycomb pitted.

Ploidy: 2n = 36

Habitat:

Elevation Range: