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CCDB → Angiosperms → Compositae → Pterocaulon → Pterocaulon pycnostachyum (Michx.) Elliott
| Name | Accepted Name | Gametophytic(n) | Sporophytic(2n) | Data Source | reference | ||
| ! | Pterocaulon undulatum C. Mohr | Pterocaulon pycnostachyum (Michx.) Elliott | 10(1) | Asteracea | Turner & F. 1966 Amer. J. Bot. | ||
| ! | Pterocaulon undulatum C. Mohr | Pterocaulon pycnostachyum (Michx.) Elliott | 10 | IPCN66 | Turner & Flyr 1966 | ||
| ! | Pterocaulon undulatum C. Mohr | Pterocaulon pycnostachyum (Michx.) Elliott | 10 | IPCN67-71 | JONES, S.B., JR. 1970. Chromosome numbers in Compositae. Bull. Torrey Bot. Club. 97: 168-174. | ||
| ! | Pterocaulon undulatum C. Mohr | Pterocaulon pycnostachyum (Michx.) Elliott | 10 | IPCN73-74 | POWELL, A.M., D.W. KYHOS, & P.H. RAVEN. 1974. Chromosome numbers in Compositae. X. Amer. J. Bot. 61: 909-913. | ||
| ! | Pterocaulon pycnostachyum (Michx.) Elliott | Pterocaulon pycnostachyum (Michx.) Elliott | 20 | eFlora | |||
| ! | Pterocaulon undulatum C. Mohr | Pterocaulon pycnostachyum (Michx.) Elliott | 20 | Fedorov, 1974 | Turner, Flyr 1966 |