CCDB is a community resource. If you are aware of any missing data or if any of the counts are erroneous please submit it to the forms submit new counts, or report erroneous counts.
CCDB → Gymnosperms → Ephedraceae → Ephedra → Ephedra tweedieana C. A. Mey.
| Name | Accepted Name | Gametophytic(n) | Sporophytic(2n) | Data Source | reference | ||
| ! | Ephedra tweedieana Fisch. & C. A. Mey. | Ephedra tweedieana C. A. Mey. | 14 | IPCN online | Ohri, D. & T. N. Khoshoo. 1986. Genome size in gymnosperms. Pl. Syst. Evol. 153: 119–132. | ||
| ! | Ephedra tweedieana Fisch. & C. A. Mey. | Ephedra tweedieana C. A. Mey. | 14 | IPCN online | Chouhdry, A. S. 1984. Karyomorphological and cytological studies in Ephedra. J. Sci. Hiroshima Univ., Ser. B,. 19: 57–109. |