Hymenothrix wrightii, commonly known as Wright's hymenothrix or Wright's thimblehead, is a North American species of flowering plant in the daisy family. It grows in northwestern Mexico (Sonora, Chihuahua, Baja California) and the southwestern United States (western Texas, Arizona, New Mexico, far southern California).Biota of North America Program 2014 county distribution mapSEINet, Southwestern Biodiversity, Arizona chapter
Hymenothrix wrightii is a perennial herb up to 60 cm (2 feet) tall. One plant produces 6-8 flower heads per stem, in a flat-topped array. Each head has 15-30 white, pink, or pale purple disc flowers but no ray flowers. The individual disc flowers are larger and showier than in many other species in the family.Gray, Asa. 1853. Smithsonian Contributions to Knowledge 5(6): 97–98Rydberg, Per Axel. 1914. North American Flora 34(1): 56 Trichymenia wrightiiFlora of North America, Hymenothrix wrightii A. Gray, 1853.
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