From Encyclopedia of Medicinal Plants
Template:Taxobox Zinnia grandiflora is a species of flowering plant in the aster family known by the common names Rocky Mountains zinnia and Plains zinnia.<ref name=ulna/> It is native to the southwestern and south-central United States (Kansas, Oklahoma, Texas, Colorado, New Mexico, Arizona)<ref>Biota of North America Program 2014 county distribution map</ref> and northern Mexico (Chihuahua, Coahuila, Sonora, Tamaulipas, Nuevo León, Zacatecas).<ref name=ulna/><ref>photo of herbarium specimen collected in Nuevo León in 1997</ref>
Zinnia grandiflora is a small flat-topped or rounded subshrub growing up to 22 centimeters (8.8 inches) tall with many slender, branching stems. The oppositely arranged leaves are linear and 1 to 3 centimeters (0.4-1.2 inches) long. The herbage is covered in short, rough hairs. The flower head has 3 to 6 bright yellow ray florets each between 1 and 2 centimeters (0.4-0.8 inches) in length. At the center is a cluster of several tubular disc florets. It grows on plains and foothills and other dry habitat.<ref name=ulna>Flora of North America, Zinnia grandiflora Nuttall, 1840. Plains or Rocky Mountain zinnia </ref>
Among the Zuni people, this plant is applied in a poultice to bruises, cold infusion of blossoms used as an eyewash, and smoke from powdered plant inhaled in sweatbath for fever.<ref>Stevenson, Matilda Coxe 1915 Ethnobotany of the Zuni Indians. SI-BAE Annual Report #30 (p. 45)</ref>
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