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 → Saxifragaceae → Heuchera → Heuchera americana L.
| Name | Accepted Name | Gametophytic(n) | Sporophytic(2n) | Data Source | reference | ||
| Heuchera americana L. | Heuchera americana L. | 7 | IPCN online | Wells, E. F. 1984. A revision of the genus Heuchera (Saxifragaceae) in eastern North America. Syst. Bot. Monogr. 3: 45–121. | |||
| Heuchera americana L. | Heuchera americana L. | 14 | IPCN online | Hill, L. M. 1995. IOPB chromosome data 9. Int. Organ. Pl. Biosyst. Newslett. (Zurich) 24: 19–20. | |||
| Heuchera americana L. | Heuchera americana L. | 14 | IPCN online | Soltis, D. E. 1980. Karyotypic relationships among species of Boykinia, Heuchera, Mitella, Sullivania, Tiarella and Tolmica (Saxifragaceae). Syst. Bot. 5: 17–29. | |||
| Heuchera americana var. americana | Heuchera americana L. | 14 | eFlora | ||||
| Heuchera americana L. | Heuchera americana L. | 14 | Fedorov, 1974 | Schoennagel 1931 | |||
| Heuchera americana L. | Heuchera americana L. | 14+4f | Fedorov, 1974 | Skovsted 1934b | |||
| ! | Heuchera americana L. | Heuchera americana L. | 14+4B | Darlington, 1955 |