CCDBAngiospermsCompositaeRoldanaRoldana barba-johannis (DC.) H. Rob. & Brettell

4 chromosome counts in Roldana barba-johannis (DC.) H. Rob. & Brettell:


Name Accepted Name Gametophytic(n) Sporophytic(2n) Data Source reference
!   Roldana barba-johannis (DC.) H. Rob. & Brettell Roldana barba-johannis (DC.) H. Rob. & Brettell 30(1)   Asteracea Jansen & S. 1980 Amer. J. Bot.
  Senecio grahamii Benth. Roldana barba-johannis (DC.) H. Rob. & Brettell 10(1)   Asteracea Gupta, R. C. et al. 2010a Cytologia
  Senecio grahamii Benth. Roldana barba-johannis (DC.) H. Rob. & Brettell 10   IPCN online Gupta, R. C. & B. S. Gill. 1979. In IOPB chromosome number reports LXIV. Taxon 28: 401–402.
!   Senecio donnell-smithii J. M. Coult. Roldana barba-johannis (DC.) H. Rob. & Brettell 60   IPCN73-74 POWELL, A.M., D.W. KYHOS, & P.H. RAVEN. 1974. Chromosome numbers in Compositae. X. Amer. J. Bot. 61: 909-913.