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Simsia calva
Also called Awnless Bush Sunflower, Bush Sunflower
Simsia calva, commonly known as the awnless bushsunflower, is a perennial or subshrub that is found in the Southwest United States (Texas and New Mexico), as well as Mexico, the West Indies, and both Central and South America.
Simsia calva flowers year round in various soils, ranging from sand to clay, and even harder surfaces such as within rocks, on limestone, in prairies, in various types of pine forests, and even along streams and roadsides.
Text excerpted from the Wikipedia article Simsia calva by its contributors, under CC BY-SA 4.0; the excerpts are shared under the same licence.
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.
