Atriplex pleiantha

W. A. Weber

Madroño 10: 189, figs. 1, 2. 1950.

Common names: Four-corners orach
IllustratedEndemic
Synonyms: Proatriplex pleiantha (W. A. Weber) Stutz & G. L. Chu
Treatment appears in FNA Volume 4. Treatment on page 345. Mentioned on page 326, 340, 344, 369.

Herbs, branching from base, mainly 0.5–1.5 dm, glabrous or sparingly scurfy. Leaves alternate to subopposite, petiolate; blade ovate to suborbiculate, 5–18 (–20) mm, about as wide, margin entire, apex obtuse to acute. Staminate flowers in short terminal spikes. Fruiting bracteoles short stipitate, compressed, 3–7 mm wide and about as long, entire; perianth consisting of 5 hyaline, sparsely ciliate scales 1–1.2 mm. Seeds falling at maturity, black, 1.5 mm, shining, smooth.


Phenology: Flowering late summer–fall.
Habitat: Salt-desert shrub community
Elevation: 1400-1500 m

Distribution

V4 659-distribution-map.gif

Ariz., Colo., N.Mex., Utah.

Discussion

Selected References

None.

Lower Taxa

None.
... more about "Atriplex pleiantha"
Obtuse (?) +  and Acute (?) +
Stanley L. Welsh +
W. A. Weber +
slippery +
aromatic +
Undefined subg. Obione +
1.8 cm18 mm <br />0.018 m <br /> (2 cm20 mm <br />0.02 m <br />) +
ovate +  and suborbiculate +
0.5 cm5 mm <br />0.005 m <br /> (1.8 cm18 mm <br />0.018 m <br />) +
persistent +  and deciduous +
reddish-brown +, black +, brown +  and green +
triangular-ovate +
3-5-parted +
Four-corners orach +
Ariz. +, Colo. +, N.Mex. +  and Utah. +
1400-1500 m +
stipitate +  and staminate +
2 +  and 5 +
unisexual +  and bisexual +
not +  and connate +
enlarged +
Salt-desert shrub community +
bladderlike +
terminal +  and axillary +
alternate +  and subopposite +
deciduous +  and persistent +
not winged +  and winged +
lobed +  and serrate-dentate +
inferior +, half-inferior +  and superior +
crassinucellate +  and bitegmic +
campylotropous +
1 +  and single +
persistent +  and deciduous +
papery +  and chartaceous +
Flowering late summer–fall. +
bulbous +  and taprooted +
fusiform +
fleshy +  and fibrous +
0.1 cm1 mm <br />0.001 m <br /> (0.12 cm1.2 mm <br />0.0012 m <br />) +
verrucate +  and striate +
flattened +
Illustrated +  and Endemic +
cylindric +
3 (?) +  and 5 (?) +
opposite +  and alternate +
succulent +
sessile +  and petiolate +
reduced;small +
horizontal +  and vertical +
verrucate +
Proatriplex pleiantha +
Atriplex pleiantha +
Atriplex sect. Pleianthae +
species +
dicotyledonous +
scurfy +  and glabrous +