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CCDB → Angiosperms → Compositae → Cirsium → Cirsium undulatum (Nutt.) Spreng.
| Name | Accepted Name | Gametophytic(n) | Sporophytic(2n) | Data Source | reference | ||
| ! | Cirsium undulatum var. undulatum | Cirsium undulatum (Nutt.) Spreng. | 26(1) | Asteracea | Frankton ＆ M. 1961 Canad. J. Bot. (= Botany) | ||
| Cirsium undulatum (Nutt.) Spreng. | Cirsium undulatum (Nutt.) Spreng. | 13(1) | Asteracea | Ward & S. 1988 Phytologia | |||
| ! | Cirsium undulatum var. undulatum | Cirsium undulatum (Nutt.) Spreng. | 26(1) | Asteracea | Frankton ＆ M. 1961 Canad. J. Bot. (= Botany) | ||
| Cirsium undulatum (Nutt.) Spreng. | Cirsium undulatum (Nutt.) Spreng. | 26 | IPCN online | Love, A. & D. Love. 1982. In: A Löve (ed.), IOPB chromosome number reports LXXV. Taxon 31(2): 344–360. | |||
| Cirsium undulatum (Nutt.) Spreng. | Cirsium undulatum (Nutt.) Spreng. | 26 | IPCN online | Dabydeen, S. 1987. Natural hybridization in the genus Cirsium: C. flodmanii x C. undulatum. Rhodora 89: 369–373. | |||
| Cirsium undulatum (Nutt.) Spreng. | Cirsium undulatum (Nutt.) Spreng. | 13 | IPCN online | Ward, D. E. & R. Spellenberg. 1988. Chromosome counts of angiosperms from New Mexico and adjacent areas. Phytologia 64: 390–398. | |||
| Cirsium undulatum (Nutt.) Spreng. | Cirsium undulatum (Nutt.) Spreng. | 26 | IPCN online | Ownbey, G. B., P. H. Raven & D. W. Kyhos. 1975 [1976]. Chromosome numbers in some North American species of the genus Cirsium. III. Western United States, Mexico, and Guatemala. Brittonia 27(4): 297–304. | |||
| Cirsium undulatum (Nutt.) Spreng. | Cirsium undulatum (Nutt.) Spreng. | 12,13 | 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. | |||
| Cirsium undulatum (Nutt.) Spreng. | Cirsium undulatum (Nutt.) Spreng. | 26 | IPCN66 | Taylor & Brockman 1966 | |||
| Cirsium undulatum (Nutt.) Spreng. | Cirsium undulatum (Nutt.) Spreng. | 26 | IPCN67-71 | OWNBEY, G.B. 1968. Cytotaxonomic notes on eleven species of Cirsium native to Mexico. Brittonia 20: 336-342. | |||
| Cirsium undulatum (Nutt.) Spreng. | Cirsium undulatum (Nutt.) Spreng. | 26 | IPCN67-71 | OWNBEY, G.B., & Y-T. HSI. 1969. Chromosome numbers in some North American species of the genus Cirsium. II. Western United states. Madrono 20: 225-228. | |||
| Cirsium undulatum (Nutt.) Spreng. | Cirsium undulatum (Nutt.) Spreng. | 26 | IPCN67-71 | OWNBEY, G.B., & W.A. OLSON. 1969. Cytotaxonomic notes on the species of Cirsium native to the Southeastern United States. Rhodora 71: 285-296. | |||
| Cirsium undulatum (Nutt.) Spreng. | Cirsium undulatum (Nutt.) Spreng. | 13 | IPCN73-74 | GARDNER, R. C. 19 7 4 . Systematics of Cirsium (Compositae) in Wyoming. Madrono 22: 239-265. | |||
| ! | Cirsium undulatum (Nutt.) Spreng. | Cirsium undulatum (Nutt.) Spreng. | 26 | eFlora | |||
| Cirsium undulatum (Nutt.) Spreng. | Cirsium undulatum (Nutt.) Spreng. | 13 | 26 | Cave1963 | Ownbey & Hsi 1963 |