CCDBAngiospermsCactaceaeOpuntiaOpuntia phaeacantha var. nigricans Engelm

1 chromosome count in Opuntia phaeacantha var. nigricans Engelm:


Name Accepted Name Gametophytic(n) Sporophytic(2n) Data Source reference
  Opuntia phaeacantha var. nigricans Engelm. Opuntia phaeacantha Engelm. 33   IPCN online Pinkava, D. J. & B. D. Parfitt. 1982. Chromosome numbers in some cacti of western North America IV. Bull Torrey Bot. Club. 109: 121–128.