Erigeron scopulinus is a North American species of flowering plant in the family Asteraceae known by the common names rock fleabane[1] and Winn Falls fleabane.[2] It has been found in the southwestern United States primarily in Arizona and New Mexico with a few isolated populations in Colorado.[3]

Erigeron scopulinus grows in on ledges and in cracks in cliffs in the mountains. It is an perennial, mat-forming herb rarely more than 3.5 cm (1.4 inches) tall, forming a thin taproot and spreading by means of underground rhizomes. The inflorescence generally contains only one flower head. Each head contains 10–20 ray florets surrounding many yellow disc florets.[1][4]

References

  1. ^ a b Flora of North America, Erigeron scopulinus G. L. Nesom & V. D. Roth, 1981. Rock fleabane
  2. ^ USDA, NRCS (n.d.). "Erigeron scopulinus". The PLANTS Database (plants.usda.gov). Greensboro, North Carolina: National Plant Data Team. Retrieved 30 June 2015.
  3. ^ Biota of North America Program 2014 county distribution map
  4. ^ Nesom, Guy L. & Vincent D.Roth. 1981. Erigeron scopulinus (Compositae), an Endemic from the Southwestern United States. Journal of the Arizona-Nevada Academy of Science 16(2): 39-42