E-Flora BC: Electronic Atlas of the Flora of British Columbia

Atriplex truncata (Torr. ex S. Watson) A. Gray
wedgescale orache (wedgescale saltbush)
Amaranthaceae (Amaranth family)
(Previously in Chenopodiaceae)

Introduction to Vascular Plants

© Curtis Bjork  Email the photographer   (Photo ID #21880)

E-Flora BC Static Map
Distribution of Atriplex truncata
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Species Information

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Annual herb from a taproot; stems erect or curved, simple or branched, 25-120 cm tall, greyish-mealy above.
Lower leaves opposite, upper leaves alternate, short-stalked or stalkless, copiously and permanently greyish-mealy, especially on the lower surfaces, greyish-green above, lance-shaped to lance-linear or oblong, 2-7 cm long, squared-off to arrowhead-shaped at the base, smooth to wavy margins but not toothed.
Inflorescence of densely compacted axillary spikes or panicles, greenish, tiny, numerous; pistillate bracteoles wedge-shaped to oblong, 2.0-3.5 mm long, entire to undulating, never toothed.
Membranous bladders enclosed by 2 lance-shaped, smooth or wavy-margined bracts; seeds 1.5 mm long.

Source: The Illustrated Flora of British Columbia

Habitat / Range

Dry roadsides, waste places and alkaline flats in the steppe and montane zones; infrequent in S BC east of the Coast-Cascade Mountains; E to SE SK and S to CO, UT and CA.

Source: The Illustrated Flora of British Columbia

Additional Notes

"The genus Atriplex, commonly called orache, atriplex or saltbush, of the family Chenopodiaceae (the goosefoot family), comprises nearly 200 species. The genus has a worldwide distribution, occurring on all continents except Antarctica. Most of the species are halophytes of coastal or inland saline habitats; a few are widespread ruderals of disturbed ground." (Bassett et al. 1983).


Bassett, I. J., C. W. Crompton, J. McNeill and P. M. Taschereau. 1983. The genus Atriplex (Chenopodiaceae) in Canada. Monograph #31, Agriculture Canada, Ottawa.


Ecological Framework for Atriplex truncata

The table below shows the species-specific information calculated from
original data (BEC database) provided by the BC Ministry of Forests and Range.
(Updated August, 2013)

Site Information
Value / Class




Elevation (metres) 916 922 928
Slope Gradient (%) 0 2 5
Aspect (degrees)
[0 - N; 90 - E; 180 - S; 270 - W]
225 225 225
Soil Moisture Regime (SMR)
[0 - very xeric; 4 - mesic;
8 - hydric]
7 7 7
Modal Nutrient Regime
Number of field plots
 species was recorded in:
Modal BEC Zone Class
All BEC Zones (# of stations/zone) species was recorded in: IDF(2)


The climate type for this species, as reported in the: "British Columbia plant species codes and selected attributes. Version 6 Database" (Meidinger et al. 2008), is not evaluated, unknown or variable.

Taxonomic and Nomenclatural Links

Additional Photo Sources

General References