Hymenothrix loomisii, the Loomis' thimblehead,[1] is a North American species of flowering plant in the daisy family. It grows in the southwestern United States (Arizona, New Mexico, southern Nevada), and also in the Sierra Madre Occidental in western Chihuahua. There have been reports of populations in southern California but these are most likely introductions.[2][3]

Hymenothrix loomisii
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Asterales
Family: Asteraceae
Genus: Hymenothrix
Species:
H. loomisii
Binomial name
Hymenothrix loomisii

Hymenothrix loomisii is an annual herb up to 70 cm (28 in) tall. Each head has 10-20 yellow or cream-colored disc flowers but no ray flowers.[4][5]

References edit

  1. ^ USDA, NRCS (n.d.). "Hymenothrix loomisii". 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 loomisii S. F. Blake, 1927.
  5. ^ Blake, Sydney Fay. 1927. Proceedings of the Biological Society of Washington 40(10): 49–50