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CCDB → Angiosperms → Compositae → Grindelia → Grindelia aphanactis Rydb.
| Name | Accepted Name | Gametophytic(n) | Sporophytic(2n) | Data Source | reference | ||
| Grindelia aphanactis Rydb. | Grindelia squarrosa (Pursh) Dunal | 12 | IPCN online | Pinkava, D. J. & D. J. Keil. 1977. Chromosome counts of Compositae from the United States and Mexico. Amer. J. Bot. 64: 680–686. | |||
| Grindelia aphanactis Rydb. | Grindelia squarrosa (Pursh) Dunal | 12 | IPCN67-71 | DUNFORD, M.P. 1970. Triploid and tetraploid hybrids from diploid X tetraploid crosses in Grindelia (Compositael. Amer. J. Bot. 57: 856-860. | |||
| Grindelia aphanactis Rydb. | Grindelia squarrosa (Pursh) Dunal | 24 | IPCN73-74 | KOVANDA, M. 1972. Somatic chromosome numbers for some Asteraceae. Rhodora 74: 102-116. | |||
| Grindelia aphanactis Rydb. | Grindelia squarrosa (Pursh) Dunal | 24 | Fedorov, 1974 | Raven et al. 1960 |