Chenopodium leptophyllum

(Moquin-Tandon) Nuttall ex S. Watson

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

WeedyEndemic
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

Distribution

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.

Discussion

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

Selected References

None.

Lower Taxa

None.

"thick" is not a number."dm" is not declared as a valid unit of measurement for this property.

... more about "Chenopodium leptophyllum"
dehiscent +  and indehiscent +
Keeled (?) +, Obtuse (?) +  and Rounded (?) +
Steven E. Clemants +  and Sergei L. Mosyakin +
(Moquin-Tandon) Nuttall ex S. Watson +
slippery +
aromatic +
cuneate +
Chenopodium album var. leptophyllum +
2.6 cm26 mm <br />0.026 m <br /> (3 cm30 mm <br />0.03 m <br />) +
0.7 cm7 mm <br />0.007 m <br /> (2.6 cm26 mm <br />0.026 m <br />) +
flattened +, rhombic +, trullate +, triangular +, ovate +, lanceolate +, oblong +  and linear +
0.1cm;0.3cm +
persistent +  and deciduous +
0 cm0 mm <br />0 m <br /> (?) +  and 0.2 cm2 mm <br />0.002 m <br /> (?) +
0 cm0 mm <br />0 m <br /> (0.01 cm0.1 mm <br />1.0e-4 m <br />) +
reddish-brown +, black +, brown +  and green +
Alta. +, B.C. +, Sask. +, Yukon +, Alaska +, Ariz. +, Calif. +, Colo. +, Idaho +, Maine +, Nev. +, N.Mex. +, Okla. +, Oreg. +, Tex. +, Utah +, Wash. +  and Wyo. +
400-3400 m +
hippocrepiform +  and annular +
symmetric +, or +  and uniseriate +
dehiscent +  and indehiscent +
Open, often disturbed sandy areas and fields +
small white +
inflated +
sessile +  and petiolate +
nonaromatic +
not fleshy +
0.08 cm0.8 mm <br />8.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
lanceolate +  and elliptic +
0.5mm;0.6mm +
not winged +  and winged +
glabrous +  and farinose +
crassinucellate +  and bitegmic +
campylotropous +
1 +  and single +
persistent +  and deciduous +
chartaceous +  and membranaceous +
0 cm0 mm <br />0 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
Fruiting mid summer–early fall. +
Proc. Amer. Acad. Arts +
pointing +  and ascending +
bulbous +  and taprooted +
fusiform +
fleshy +  and fibrous +
0.09 cm0.9 mm <br />9.0e-4 m <br /> (?) +  and 0.11 cm1.1 mm <br />0.0011 m <br /> (?) +
Weedy +  and Endemic +
compound +, dense +  and loose +
cylindric +
not imbricate +
keeled +  and rounded +
opposite +  and alternate +
semierect +  and erect +
not fleshy +
filiform +
0.1 cm1 mm <br />0.001 m <br /> (?) +  and 2 cm20 mm <br />0.02 m <br /> (?) +
sessile +  and petiolate +
reduced;small +
horizontal +  and vertical +
verrucate +
Chenopodium leptophyllum +
Chenopodium subsect. Leptophylla +
species +
dehiscent +  and indehiscent +
glabrous +  and pubescent +
polygamous +, dioecious +  and monoecious +
not imbricate +
keeled +  and rounded +