Croptilon hookerianum, called Hooker's scratchdaisy, is a North American species of flowering plants in the tribe Astereae within the family Asteraceae. It has been found in the US states of Texas, Oklahoma, Kansas, and Arkansas.[2]

Croptilon hookerianum is an herb sometimes reaching a height of 120 cm (4 feet). Flower heads are yellow, with both ray florets and disc florets.[3]

Varieties
  • Croptilon hookerianum var. graniticum (E.B.Sm.) E.B.Sm. - Texas
  • Croptilon hookerianum var. hookerianum - Texas
  • Croptilon hookerianum var. validum (Rydb.) E.B.Sm. - Arkansas, Kansas, Oklahoma, Texas

References

  1. ^ The Plant List Croptilon hookerianum (Torr. & A.Gray) House
  2. ^ Biota of North America Program 2014 county distribution map
  3. ^ "Croptilon rigidifolium in Flora of North America @ efloras.org". www.efloras.org. Retrieved 2023-08-08.