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CCDB → Angiosperms → Compositae → Grindelia → Grindelia squarrosa var. serrulata (Rydb.) Steyerm.
| Name | Accepted Name | Gametophytic(n) | Sporophytic(2n) | Data Source | reference | ||
| Grindelia squarrosa var. serrulata (Rydb.) Steyerm. | Grindelia squarrosa (Pursh) Dunal | 12 | IPCN online | Turner, B. L. & Z. Zhao. 1992. Documented chromosome numbers 1992: 2. Miscellaneous U.S.A. and Mexican species, mostly Asteraceae. Sida 15: 147–150. | |||
| Grindelia squarrosa var. serrulata (Rydb.) Steyerm. | Grindelia squarrosa (Pursh) Dunal | 6II | IPCN online | Lane, M. A. & J. Li. 1993. Documented chromosome numbers 1993: 1. Chromosome number reports in Compositae with emphasis on tribe Astereae of the southwestern United States and Mexico. Sida 15: 539–546. | |||
| Grindelia squarrosa var. serrulata (Rydb.) Steyerm. | Grindelia squarrosa (Pursh) Dunal | 6 | 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. |