CCDBAngiospermsCompositaeXylorhizaXylorhiza tortifolia var. tortifolia

3 chromosome counts in Xylorhiza tortifolia var. tortifolia:


Name Accepted Name Gametophytic(n) Sporophytic(2n) Data Source reference
  Xylorhiza tortifolia var. tortifolia Xylorhiza tortifolia (Torr. & A. Gray) Greene   12, 24(30, 4) Asteracea Watson 1978 Madrono
  Xylorhiza tortifolia var. tortifolia Xylorhiza tortifolia (Torr. & A. Gray) Greene 6,12 12 IPCN online Watson, T. J. 1978. Chromosome numbers in Xylorhiza Nuttall (Asteraceae Astereae). Madroño 25: 205–210.
  Xylorhiza tortifolia var. tortifolia Xylorhiza tortifolia (Torr. & A. Gray) Greene   12,24 eFlora