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FNA | Family List | FNA Vol. 4 | Chenopodiaceae | Dysphania

9. Dysphania carinata (R. Brown) Mosyakin & Clemants, Ukrayins’k. Bot. Zhurn., n. s. 59: 382. 2002.

Chenopodium carinatum R. Brown, Prodr., 407. 1810

Stems erect to ascending, branched, 3-5.5 dm, pilose with glandular trichomes or sessile glands. Leaves 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. Inflorescences axillary glomerules; glomerules subglobose, 1.5-2.5 mm diam.; bracts leaflike, ovate, 3-5 mm, margins crenate-dentate, apex acute. Flowers: 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. Achenes ovoid; pericarp adherent, membranaceous, slightly rugose. Seeds reddish brown, ovoid, 0.6 × 0.3-0.4 mm, margins keeled over radicle and channeled over cotyledons; seed coat smooth.

Fruiting fall. Waste areas on roadsides, sandy soils; 10-100 m; introduced; Ala., Ark., Tex.; native to Australia.


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