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CCDB → Angiosperms → Compositae → Townsendia → Townsendia incana Nutt.
| Name | Accepted Name | Gametophytic(n) | Sporophytic(2n) | Data Source | reference | ||
| Townsendia incana Nutt. | Townsendia incana Nutt. | 18(2) | Asteracea | Beaman 1954 Madrono | |||
| Townsendia incana Nutt. | Townsendia incana Nutt. | 27+1frag.(1) | Asteracea | Watson 1973 Southw. Naturalist | |||
| Townsendia incana Nutt. | Townsendia incana Nutt. | 9 | IPCN online | ||||
| Townsendia incana Nutt. | Townsendia incana Nutt. | 9+0-1 | IPCN online | Brown, G. K. & M. Thompkins. 1982. In: IOPB chromosome number reports LXXVII. Taxon 31: 773–774. | |||
| Townsendia incana Nutt. | Townsendia incana Nutt. | 27I,36II | IPCN online | Keil, D. J. & D. J. Pinkava. 1976. Chromosome counts and taxonomic notes for Compositae from the United States and Mexico. Amer. J. Bot. 63: 1393–1403. | |||
| Townsendia incana Nutt. | Townsendia incana Nutt. | 27+1f | IPCN73-74 | WATSON, T.J., Jr. 1973. Chromosome numbers in Compositae from the southwestern United states. Southw. Naturalist 18: 117-124. | |||
| ! | Townsendia incana Nutt. | Townsendia incana Nutt. | 18 | eFlora | |||
| ! | Townsendia arizonica A. Gray | Townsendia incana Nutt. | 18 | Cave1956supp | Beaman 1954 | ||
| ! | Townsendia incana None | Townsendia incana Nutt. | 28, 30 | Cave1956supp | Beaman 1954 | ||
| Townsendia incana Nutt. | Townsendia incana Nutt. | 9 | 18, c.27, c.30,29, 36 | Cave1959 | Beaman 1957 |