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 distachya subsp. helvetica (C. A. Mey.) Asch. & Graebn.
| Name | Accepted Name | Gametophytic(n) | Sporophytic(2n) | Data Source | reference | ||
| ! | Ephedra distachya subsp. helvetica (C. A. Mey.) Asch. & Graebn. | Ephedra distachya subsp. helvetica (C. A. Mey.) Asch. & Graebn. | 28 | IPCN online | Leitch, I. J., L. Hanson, M. Winfield, J. Parker & M. D. Bennett. 2001. Nuclear DNA C-values complete familial representation in gymnosperms. Ann. Bot. (Oxford) 88: 843–849. |