Hymenothrix wislizeni, the Trans-Pecos thimblehead,[1] 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).[2][3]

Hymenothrix wislizeni is an annual herb up to 70 cm (28 in) tall. Each head has 15-30 yellow or cream-colored disc flowers surrounded by 8-12 yellow ray flowers.[4][5]

References

  1. ^ USDA, NRCS (n.d.). "Hymenothrix wislizeni". The PLANTS Database (plants.usda.gov). Greensboro, North Carolina: National Plant Data Team. Retrieved 3 August 2015.
  2. ^ Biota of North America Program 2014 county distribution map
  3. ^ SEINet, Southwestern Biodiversity, Arizona chapter
  4. ^ Flora of North America, Hymenothrix wislizeni A. Gray, 1849.
  5. ^ Gray, Asa. 1849. Memoirs of the American Academy of Arts and Science, new series 4(1): 102

External links