Hymenothrix wislizeni, the Trans-Pecos thimblehead, is a North American species of flowering plant in the daisy family. It grows in northwestern Mexico (Baja California, Sonora, Chihuahua) and the southwestern United States (far western Texas, Arizona, New Mexico).Biota of North America Program 2014 county distribution mapSEINet, Southwestern Biodiversity, Arizona chapter
Hymenothrix wislizeni is an annual herb up to tall. Each head has 15-30 yellow or cream-colored disc flowers surrounded by 8-12 yellow ray flowers.Flora of North America, Hymenothrix wislizeni A. Gray, 1849. Gray, Asa. 1849. Memoirs of the American Academy of Arts and Science, new series 4(1): 102
References
External links Photo of herbarium specimen at Missouri Botanical Garden, collected in Chihuahua in 1846, type specimen for Hymenothrix wislizeni