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

16. Chenopodium hians Standley in N. L. Britton et al., N. Amer. Fl. 21: 16. 1916.

Chenopodium incognitum Wahl

Stems erect, branched, 1-4.5(-8) dm, farinose; basal branches erect, often weak; distal branches erect or nearly so, sparse. Leaves nonaromatic; petiole 0.2-0.7 cm; blade elliptic-oblong or narrowly lanceolate, 3-veined, 1-2.5(-3) × 0.3-0.6(-0.8) cm, base cuneate, margins entire, apex acute to rounded, densely farinose abaxially. Inflorescences glomerules in lateral spikes or panicles, 5-7 cm; glomerules densely spaced, maturing irregularly; bracts leaflike. Flowers: perianth segments 5, distinct nearly to base; lobes elliptic, oblong, or narrowly ovate, 0.8-1 × 0.6-0.8 mm, apex rounded, slightly keeled, densely farinose, erect and exposing fruit at maturity; stamens 5; stigmas 2, 0.2 mm. Achenes ovoid; pericarp adherent, minutely tuberculate. Seeds round, 1-1.4 mm diam., margins rounded; seed coat black, rugulate. 2n = 18.

Fruiting late summer-early fall. Open, dry or moist areas including prairies, pastures, sand hills, roadsides, lakeshores; 500-3000 m; Alta., B.C., Sask.; Ariz., Calif., Colo., Nev., N.Mex., Oreg., Tex., Utah, Wash., Wyo.


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