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 → Angiosperms → Compositae → Helenium → Helenium mexicanum DC.
| Name | Accepted Name | Gametophytic(n) | Sporophytic(2n) | Data Source | reference | ||
| ! | Helenium mexicanum DC. | Helenium mexicanum DC. | 26 | IPCN72 | GRASHOFF, J.L., M.W. BIERNER, & D.K. NORTHINGTON. 1972. Chromosome numbers in North and Central American Compositae. Brittonia 24: 379-394. | ||
| Helenium mexicanum DC. | Helenium mexicanum DC. | 30 | IPCN67-71 | CHOUKSANOVA, N.A., L.I. SVESHNIKOVA, & T.V. ALEXANDROVA. 1968. A new evidence on chromosome numbers in species of the family Compositae Giseke. Citologija 10: 381-386. |