Chenopodium fremontii

S. Watson

Botany (Fortieth Par allel), 287. 1871.

Illustrated
Treatment appears in FNA Volume 4. Treatment on page 291. Mentioned on page 277, 292.

Stems erect to spreading, simple proximally, branched distally, 1–8 dm, farinose. Leaves nonaromatic; petiole 0.4–2.5 cm; blade usually broadly triangular, sometimes ovate to elliptic, 0.7–6 cm thick, base truncate or cuneate, margins entire or with a pair of basal teeth or lobes, apex rounded to obtuse, farinose abaxially. Inflorescences glomerules in terminal and axillary interrupted spikes, 16–22 × 4–5 cm; glomerules 2–5 mm diam., maturing mixed; bracts small, margins entire. Flowers: perianth segments 5, distinct nearly to base; lobes ovate, 0.7–1 × 0.5–0.9 mm, apex obtuse, carinate, farinose to subglabrous, completely covering fruit at maturity; stamens 5; stigmas 2, 0.2–0.5 mm. Utricles ovoid; pericarp nonadherent, warty-smooth. Seeds round, 1–1.3 mm diam.; seed-coat dark reddish-brown to black (sometimes with light streaks), ± smooth. 2n = 18.


Phenology: Fruiting late summer–fall.
Habitat: A wide variety of habitats from desert, cliffs, talus, and moist shaded areas under aspen, junipers, or pinyons, often in riparian habitats
Elevation: 2000-2900 m

Distribution

V4 549-distribution-map.gif

Alta., B.C., Man., Sask., Ariz., Calif., Colo., Idaho, Kans., Mont., Nebr., Nev., N.Mex., N.Dak., Oreg., S.Dak., Tex., Utah, Wyo., Mexico (Baja California), Mexico (Coahuila), Mexico (Tamaulipas)

Discussion

Selected References

None.

Lower Taxa

None.

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

... more about "Chenopodium fremontii"
dehiscent +  and indehiscent +
farinose +  and subglabrous +
Carinate (?) +, Obtuse (?) +  and Rounded (?) +
Steven E. Clemants +  and Sergei L. Mosyakin +
S. Watson +
slippery +
aromatic +
cuneate +  and truncate +
Fremontiana +
ovate +  and elliptic +
0.7 cm7 mm <br />0.007 m <br /> (6 cm60 mm <br />0.06 m <br />) +
persistent +  and deciduous +
reddish-brown +, black +, brown +  and green +
Alta. +, B.C. +, Man. +, Sask. +, Ariz. +, Calif. +, Colo. +, Idaho +, Kans. +, Mont. +, Nebr. +, Nev. +, N.Mex. +, N.Dak. +, Oreg. +, S.Dak. +, Tex. +, Utah +, Wyo. +, Mexico (Baja California) +, Mexico (Coahuila) +  and Mexico (Tamaulipas) +
2000-2900 m +
hippocrepiform +  and annular +
symmetric +, or +  and uniseriate +
dehiscent +  and indehiscent +
0.2 cm2 mm <br />0.002 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
A wide variety of habitats from desert, cliffs, talus, and moist shaded areas under aspen, junipers, or pinyons, often in riparian habitats +
small white +
inflated +
16 cm160 mm <br />0.16 m <br /> (22 cm220 mm <br />0.22 m <br />) +
4 cm40 mm <br />0.04 m <br /> (5 cm50 mm <br />0.05 m <br />) +
sessile +  and petiolate +
nonaromatic +
not fleshy +
0.07 cm0.7 mm <br />7.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
0.5mm;0.9mm +
not winged +  and winged +
entire +  and with a pair +
farinose +  and glabrous +
acute +  and rounded +
crassinucellate +  and bitegmic +
campylotropous +
1 +  and single +
persistent +  and deciduous +
nonadherent +
chartaceous +  and membranaceous +
0.4 cm4 mm <br />0.004 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
Fruiting late summer–fall. +
Botany (Fortieth Par allel), +
pointing +  and ascending +
bulbous +  and taprooted +
fusiform +
fleshy +  and fibrous +
dark reddish-brown +  and black +
honeycombed +  and smooth +
0.1 cm1 mm <br />0.001 m <br /> (?) +  and 0.13 cm1.3 mm <br />0.0013 m <br /> (?) +
Illustrated +
cylindric +
not imbricate +
keeled +  and rounded +
branched +  and simple +
opposite +  and alternate +
erect +  and spreading +
not fleshy +
filiform +
0.02 cm0.2 mm <br />2.0e-4 m <br /> (?) +  and 0.05 cm0.5 mm <br />5.0e-4 m <br /> (?) +
sessile +  and petiolate +
reduced;small +
horizontal +  and vertical +
verrucate +
Chenopodium fremontii +
Chenopodium subsect. Fremontia +
species +
dehiscent +  and indehiscent +
glabrous +  and pubescent +
polygamous +, dioecious +  and monoecious +
not imbricate +
keeled +  and rounded +