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Montana Field Guide

Montana Field Guides

Powell's Saltbush - Atriplex powellii

Native Species

Global Rank: G4
State Rank: S3S4
(see State Rank Reason below)

Agency Status
USFWS:
USFS:
BLM:
MNPS Threat Rank:
C-value: 3

External Links






State Rank Reason (see State Rank above)
Numerous collections at MONT from BigHorn, McCone, Fergus, Valley counties. Also known in Beaverhead Co.
 
General Description
Dioecious or monoecious annual with farinose foliage. Stems erect, branched, 10–40 cm. Leaf blades ovate with acute tips and entire margins, 1–3 cm long, 3-nerved from the base. Inflorescence axillary glomerules, female below male. Male flowers 4- to 5-parted. Female flowers lacking a calyx; pistillate bracts united to the tip. Mature pistillate bracts fiddle-shaped, 3–4 mm long with toothed margins and tuberculate faces below (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Range Comments
In MT scattered across the eastern half; AB, SK east to SD; south to AZ, NM (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX; Welsh 2003 in Fl.N. Amer. Vol. 4).

Observations in Montana Natural Heritage Program Database
Number of Observations: 4

(Click on the following maps and charts to see full sized version) Map Help and Descriptions
Relative Density

Recency

 

(Observations spanning multiple months or years are excluded from time charts)



Habitat
Barren, fine-textured, often saline or alkaline soil of eroding slopes, badlands, salt flats, drying ponds; plains (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

References
  • Additional ReferencesLegend:   View Online Publication
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    • Lesica, P., M.T. Lavin, and P.F. Stickney. 2012. Manual of Montana Vascular Plants. Fort Worth, TX: BRIT Press. viii + 771 p.
    • Seipel, T.F. 2006. Plant species diversity in the sagebrush steppe of Montana. M.Sc. Thesis. Bozeman, MT: Montana State University. 87 p.
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Citation for data on this website:
Powell's Saltbush — Atriplex powellii.  Montana Field Guide.  .  Retrieved on , from