Helianthus ciliaris
Texas blueweed, Blueweed sunflower 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: North America
Species Description
General: Dicot-herb, perennial Roots: Shoots: alternate, opposite leaf arrangment; simple leaf type; entire, undulate, serrate leaf margin; Pinnate leaf venation; oblong leaf shape Inflorescence: head Flowers: perfect; complete, regular, irregular; yellow; epigynous ovary position Fruit: achene Physiology: autotrophic; C3 C02 fixation Reproduction: sexual, vegetative
Ecology & Natural History
Habitat: Species is distributed in western U.S. in dry to damp alkaline soils. ILPIN Notes: Species is adventive from western U.S. Only in St. Claire Co. Leaf margins have conspicuous bristly ciliate margins; rays are short, less than 1 cm. long. Lower leaves opposite, upper ones alternate (Herbarium at Survey). Leaf venation may be pinnate or other. Genus in general causes hayfever and provides seeds for bread, oil, and coffee substitute. Species propagates readily from an extensive lateral root system. Species has sterile rays; fertile and perfect disks. Rodgers, C.E., T.E. Thompson & G.J. Seiler. 1982. Sunflower Association, Bismark, N.D. 75 pgs. Functional Relationships:
Human Relationships:
Wildlife and Livestock Information:
Coefficient of Conservatism (C-value) [?] :
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