CCDBAngiospermsCompositaeCarduusCarduus occidentalis Nutt.

8 chromosome counts in Carduus occidentalis Nutt.:


Name Accepted Name Gametophytic(n) Sporophytic(2n) Data Source reference
!   Carduus occidentalis Nutt. Carduus occidentalis Nutt.   16 Flora Iberica Contribucin al estudio cariolgico del gnero Carduus en la Pennsula Ibrica. Devesa, J. A.Lagascalia10(1): 65-80(1981).
  Cirsium occidentale (Nutt.) Jeps. Carduus occidentalis Nutt. 15, 15+1supn.(2, 1)   Asteracea Ownbey et al. 1975 Brittonia
!   Cirsium occidentale (Nutt.) Jeps. Carduus occidentalis Nutt. 15II(1)   Asteracea Keil et al. 1988 Amer. J. Bot.
  Cirsium occidentale (Nutt.) Jeps. Carduus occidentalis Nutt.   30 IPCN online Ownbey, G. B., P. H. Raven & D. W. Kyhos. 1975 [1976]. Chromosome numbers in some North American species of the genus Cirsium. III. Western United States, Mexico, and Guatemala. Brittonia 27(4): 297–304.
!   Cirsium occidentale (Nutt.) Jeps. Carduus occidentalis Nutt. 15II   IPCN online Keil, D. J., M. A. Luckow & D. J. Pinkava. 1988. Chromosome studies in Asteraceae from the United States, Mexico, the West Indies, and South America. Amer. J. Bot. 75: 652–668.
!   Cirsium occidentale (Nutt.) Jeps. Carduus occidentalis Nutt.   "28-30" IPCN67-71 OWNBEY, G.B., & Y-T. HSI. 1969. Chromosome numbers in some North American species of the genus Cirsium. II. Western United states. Madrono 20: 225-228.
!   Cirsium occidentale (Nutt.) Jeps. Carduus occidentalis Nutt.   28,29,30 eFlora  
!   Cirsium occidentale (Nutt.) Jeps. Carduus occidentalis Nutt.   30 Cave1963 Moore & Frank, 1963