Atriplex oblongifolia Waldst. & Kit.
oblong-leaved orache (oblongleaf orache)
Amaranthaceae (Amaranth family)
(Previously in Chenopodiaceae)

Introduction to Vascular Plants

Photograph

© Robert Flogaus-Faust     (Photo ID #67138)


Map

E-Flora BC Static Map

Distribution of Atriplex oblongifolia
Click here to view the full interactive map and legend

Species Information

General:
Annual herb from a taproot; stems erect, branched, 0.2-1.2 m tall.
Leaves:
Lower leaves opposite, upper leaves alternate, stalked or stalkless, oblong-lanceolate, smooth or slightly toothed, covered with a whitish-mealy substance below, green above.
Flowers:
Inflorescence of terminal or axillary spikes or panicles; pistillate bracteoles of 2 sizes, largest bracteoles egg-shaped or egg-shaped-triangular, up to 13 mm long, enclosing a 3 mm wide yellow-brown fruit, the smaller bracteoles enclosing a black fruit 1.5 mm wide, all bracteoles with margins free to the base and lateral teeth lacking.
Fruits:
Membranous pericarps; seeds erect, 1-2 mm long.

SourceThe Illustrated Flora of British Columbia

Illustration

If more than one illustration is available for a species (e.g., separate illustrations were provided for two subspecies) then links to the separate images will be provided below. Note that individual subspecies or varietal illustrations are not always available.

Ecology

Ecological Framework for Atriplex oblongifolia

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

Avg

Min

Max

Elevation (metres)
440 440 440
Slope Gradient (%)
2 2 2

Aspect (degrees)
[0 - N; 90 - E; 180 - S; 270 - W]

0
Soil Moisture Regime (SMR)
[0 - very xeric; 4 - mesic;
8 - hydric]
5 5 5
Modal Nutrient Regime
Class
F
# of field plots
 species was recorded in:
1
Modal BEC Zone Class
PP

All BEC Zones (# of stations/zone) species was recorded in

PP(1)

Habitat and Range

Dry roadsides and waste places in the steppe and montane zones; rare in SC and SE BC; introduced from Eurasia.

SourceThe Illustrated Flora of British Columbia

Taxonomic 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).

References

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