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Montana Field Guide

Montana Field Guides

Russian Thistle - Salsola tragus
Other Names:  Prickly Russian-thistle, Russian-thistle, Salsola australis, Salsola kali [misapplied], Salsola pestifer, Salsola iberica

Non-native Species

Global Rank: GNRTNR
State Rank: SNA

Agency Status
USFWS:
USFS:
BLM:
MNPS Threat Rank:
C-value: 0

External Links






 
General Description
Stems 10–100 cm, branched at the base. Leaves ca. 4 cm × 1 mm. Inflorescence interrupted at maturity; bracts reflexed at maturity, little overlapping. Fruiting calyx 4–10 mm across with 3 conspicuous wings (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Species Range
Unknown/Undetermined
 


Range Comments
In MT nearly statewide; native to Eurasia but now throughout temperate North America (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Observations in Montana Natural Heritage Program Database
Number of Observations: 31

(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
Roadsides, cultivated fields, dry lake beds; plains, valleys (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Management

References
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Citation for data on this website:
Russian Thistle — Salsola tragus.  Montana Field Guide.  .  Retrieved on , from