Template:Phipps & O’Kennon, 1998

• Phipps, J.B. & O'Kennon, R.J. 1998. Three new species of Crataegus (Rosaceae) from Western North America: C. okennonii, C. okanaganensis and C. phippsii. Sida 18(1): 169–191. BHL  
  • Find all Wikispecies pages which cite this reference.