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Helianthus ciliaris
Also called Blueweed, Blueweed Sunflower
Texas blueweed is a perennial sunflower with blue-green foliage that grows about 40 to 70 cm tall. It is a tough, weedy species that thrives in disturbed ground and roadsides, and it does well in moist soil such as drainage ditches.
Helianthus ciliaris is a species of sunflower known by the common names Texas blueweed and yerba parda.
Helianthus ciliaris grows in much of the south-central and southwestern United States (from Texas north to Kansas and west to California) and northern Mexico (from Tamaulipas west to Sonora and south to Durango and San Luis Potosí), but it can be found elsewhere in North America where it is an introduced species and often a noxious weed. It is weedy even in much of its native range, growing readily in disturbed areas, on cultivated land, and along the roadside. It grows well in moist areas such as drainage ditches.
Common sunflower · Sawtooth sunflower · Maximilian sunflower · Paradox sunflower · Jerusalem artichoke · Sunflower
Text excerpted from the Wikipedia article Helianthus ciliaris by its contributors, under CC BY-SA 4.0; the excerpts and the care summary drawn from them are shared under the same licence.
The care summary was written by AI (Claude, Anthropic) from the sources on this page, with general growing knowledge where they are silent. Check before relying on it.
Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.
