Atriplex truncata

(Torrey ex S. Watson) A. Gray

Proc. Amer. Acad. Arts 8: 398. 1873.

Common names: Wedge orach
IllustratedEndemic
Basionym: Obione truncata Torrey ex S. Watson Botany (Fortieth Parallel), 291. 1871
Synonyms: Atriplex subdecumbens M. E. Jones Atriplex truncata var. stricta A. Gray
Treatment appears in FNA Volume 4. Treatment on page 354. Mentioned on page 328, 347.

Herbs, typically erect. Stems simple or more commonly branched throughout, mainly 2–8 (–10) dm, branches mostly obtusely angled; herbage scurfy, becoming glabrate. Leaves alternate or proximalmost opposite, short petiolate proximally, sessile and often cordate-clasping distally; blade ovate to deltoid or oval, 4–30 (–40) × 3–30 mm, base truncate or subhastate to rounded, margin entire or dentate, apex acute to obtuse. Flowers in axillary glomerules. Staminate flowers in glomerules mainly in distal axils; sepals 3–5. Fruiting bracteoles scarcely compressed, 2–3 mm and as wide, apex truncate to broadly rounded, with 3 (or more) teeth across summit, surfaces smooth (or rarely tuberculate). Seeds brown, 1–2 mm wide. 2n = 18.


Phenology: Flowering summer–fall.
Habitat: Saline saltgrass-greasewood-rabbitbrush communities, and other pans or palustrine or lacustrine habitats
Elevation: 400-2700 m

Distribution

V4 682-distribution-map.gif

Alta., B.C., Sask., Calif., Colo., Idaho, Mont., Nev., Oreg., Utah, Wash., Wyo.

Discussion

Selected References

None.

Lower Taxa

None.

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

... more about "Atriplex truncata"
Stanley L. Welsh +
(Torrey ex S. Watson) A. Gray +
slippery +
aromatic +
subhastate +  and rounded +
Obione truncata +
3 cm30 mm <br />0.03 m <br /> (4 cm40 mm <br />0.04 m <br />) +
0.4 cm4 mm <br />0.004 m <br /> (3 cm30 mm <br />0.03 m <br />) +
ovate +  and deltoid or oval +
3mm;30mm +
persistent +  and deciduous +
reddish-brown +, black +, brown +  and green +
0 +  and 1/2 +
cuneate +  and ovate or obovate +
3-5-parted +
Wedge orach +
Alta. +, B.C. +, Sask. +, Calif. +, Colo. +, Idaho +, Mont. +, Nev. +, Oreg. +, Utah +, Wash. +  and Wyo. +
400-2700 m +
rarely +  and lacking +
unisexual +  and bisexual +
not +  and connate +
enlarged +
Saline saltgrass-greasewood-rabbitbrush communities, and other pans or palustrine or lacustrine habitats +
bladderlike +
glabrate +  and scurfy +
terminal +  and axillary +
deciduous +  and persistent +
not winged +  and winged +
dentate +  and entire +
lobed +  and serrate-dentate +
inferior +, half-inferior +  and superior +
crassinucellate +  and bitegmic +
campylotropous +
1 +  and single +
persistent +  and deciduous +
(1-)3-5-lobed +
papery +  and chartaceous +
Flowering summer–fall. +
sessile +  and petiolate +
opposite +  and alternate +
Proc. Amer. Acad. Arts +
bulbous +  and taprooted +
fusiform +
fleshy +  and fibrous +
verrucate +  and striate +
flattened +
0.1 cm1 mm <br />0.001 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
3 +  and 5 +
Illustrated +  and Endemic +
cylindric +
3 (?) +  and 5 (?) +
branched +  and simple +
opposite +  and alternate +
succulent +
sessile +  and petiolate +
reduced;small +
horizontal +  and vertical +
stipitate +, sessile +  and monomorphic +
verrucate +
Atriplex subdecumbens +  and Atriplex truncata var. stricta +
Atriplex truncata +
Atriplex subsect. Truncatae +
species +
dicotyledonous +
0.2 cm2 mm <br />0.002 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +