Centaurea solstitalis
Yellow star thistle, Barnaby's thistle Taxonomy
Synonyms: Subspecific taxa: Classification:
Other taxonomic & nomenclature sources: USDA Plants;  ITIS;  The Plant List;  IPNI 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: FLNA;  USDA Plants;  BONAP;  BISON
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Species Status
Status/Listing: No Information Notes: Origin: Europe
Species Description
General: Dicot-herb, biennial, annual Roots: Shoots: alternate leaf arrangment; simple leaf type; entire, serrate, lobed (pinnately), parted (pinnately) leaf margin; Pinnate leaf venation; awl-shaped, oblong, lanceolate leaf shape Inflorescence: head Flowers: perfect; complete, incomplete, regular; yellow; epigynous ovary position Fruit: achene Physiology: autotrophic Reproduction: sexual
Ecology & Natural History
Habitat: Species is distributed in wastes, railroads. ILPIN Notes: Species is a native of Mediterranean; Jackson county. Species has irregular marginal flowers without pappus; central flowers are regular, with pappus. Weediness - noxious - UT, CO, WY, MT, ND. Functional Relationships:
Human Relationships:
Wildlife and Livestock Information:
Coefficient of Conservatism (C-value) [?] :
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