Chenopodium leptophyllum

(Moquin-Tandon) Nuttall ex S. Watson

Proc. Amer. Acad. Arts 9: 94. 1874.

Basionym: Chenopodium album var. leptophyllum Moquin-Tandon in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. 13(2): 71. 1849
Treatment appears in FNA Volume 4. Treatment on page 290. Mentioned on page 276.

Stems erect or occasionally semierect, usually branching from base, 1–4 dm, farinose to densely farinose. Leaves nonaromatic; petiole to 0.5 cm; blade linear, 1-veined, 0.7–2.6(–3) × 0.1–0.3 cm, usually somewhat fleshy, base cuneate, margins entire, apex obtuse, densely farinose abaxially. Inflorescences glomerules in terminal and axillary panicle; glomerules widely spaced, maturing irregularly; bracts leaflike in proximal part of inflorescence and linear to 2 × 0.1 mm on terminal branches. Flowers: perianth segments 5, distinct nearly to base; lobes lanceolate to elliptic, 0.8–1 × 0.5–0.6 mm, apex obtuse to rounded, prominently keeled abaxially, densely farinose, covering fruit at maturity; stamens 5; stigmas 2, 0.1 mm. Achenes ovoid; pericarp adherent, smooth. Seeds ovoid, 0.9–1.1 mm diam., margins round; seed coat black, finely rugulate. 2n = 18.

Phenology: Fruiting mid summer–early fall.
Habitat: Open, often disturbed sandy areas and fields
Elevation: 400-3400 m


V4 546-distribution-map.gif

Alta., B.C., Sask., Yukon, Alaska, Ariz., Calif., Colo., Idaho, Maine, Nev., N.Mex., Okla., Oreg., Tex., Utah, Wash., Wyo.


This species is reported also for Kansas and Montana but we have not seen any specimens.

Selected References


Lower Taxa

... more about "Chenopodium leptophyllum"
Steven E. Clemants +  and Sergei L. Mosyakin +
(Moquin-Tandon) Nuttall ex S. Watson +
Chenopodium album var. leptophyllum +
Alta. +, B.C. +, Sask. +, Yukon +, Alaska +, Ariz. +, Calif. +, Colo. +, Idaho +, Maine +, Nev. +, N.Mex. +, Okla. +, Oreg. +, Tex. +, Utah +, Wash. +  and Wyo. +
400-3400 m +
Open, often disturbed sandy areas and fields +
Fruiting mid summer–early fall. +
Proc. Amer. Acad. Arts +
Weedy +  and Endemic +
Chenopodium leptophyllum +
Chenopodium subsect. Leptophylla +
species +