Illinois Natural History Survey - University of Illinois

Salsola tragus
Russian thistle
Taxonomy

Synonyms: Salsola iberica, Salsola kali var. tenuifolia

Subspecific taxa:

Classification:

Other taxonomic & nomenclature sources: USDA PlantsITISThe Plant ListIPNI

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Species Distribution
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County Map Legend
Absent:
Not known from county
Medium confidence:
Medium or unknown confidence;
often old records or unverifiable observations
Medium-high confidence:
Often observations by expert botanists
High confidence:
Often vouchered herbarium records
Planted / introduced:
Native species introduced outside historic range,
or only in planted locations within county (e.g., restorations)
Historic / extirpated:
Only historic records for the species; likely extirpated
(Note that this category is not yet functional)

North American distribution maps for this species: FLNAUSDA PlantsBONAPBISON

Collection & Observation Phenology [?]

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F
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M
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A
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M
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J
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J
0
A
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S
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O
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N
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Collection & Observation Timeline [?]

Species Status

Status/Listing: No Information

Notes:

Origin: Europe

Species Description

General: Dicot-herb, annual

Roots: primary

Shoots: alternate leaf arrangment; simple leaf type; entire leaf margin; Pinnate leaf venation; hastate leaf shape

Inflorescence: solitary

Flowers: perfect; 5 merous; incomplete, not petals; green; hypogynous ovary position

Fruit: achene

Physiology: autotrophic; C4 C02 fixation

Ecology & Natural History

Habitat: Species is distributed on railroad ballast; sandy cultivated soil; cindery soil; sand bars and flats along Mississippi river.

ILPIN Notes: Species is rare in the south. This may not be an economic weed in our area. In some western and prairie states, this species is considered the main cause of hayfever. Leaves are filiform. Species is a native of central Asia. Species helped to build up loose soils in windblown sections of the western states.

Functional Relationships:

Human Relationships:

  • Edibility [?] :
  • Showy Flowers:

Wildlife and Livestock Information:

  • Food Value:
  • Cover Value:

Coefficient of Conservatism (C-value) [?] :

  • Entire State:
  • Chicago Area:

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