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CCDB → Angiosperms → Compositae → Cirsium → Cirsium engelmannii Rydb.
| Name | Accepted Name | Gametophytic(n) | Sporophytic(2n) | Data Source | reference | ||
| ! | Cirsium grumosum (Hoffmanns. & Link) Willk. & Lange | Cirsium engelmannii Rydb. | 34 | Flora Iberica | Contribution la connaissance cytotaxinomique des spermatophyta du Portugal. II. Compositae Fernandes, A. & M. Queirs.Bol. Soc. Brot. ser. 245: 5-121(1971). | ||
| Cirsium engelmannii Rydb. | Cirsium engelmannii Rydb. | 20+1acces., 2C (21= 44.0µm)(1) | Asteracea | Moore ＆ F. 1969 Canad. J. Bot. (= Botany) | |||
| Cirsium engelmannii Rydb. | Cirsium engelmannii Rydb. | 18(9) | Asteracea | Ownbey ＆ O. 1969 Rhodora | |||
| Cirsium engelmannii Rydb. | Cirsium engelmannii Rydb. | 20+1B | IPCN67-71 | MOORE, R.J., & C. FRANKTON. 1969. Cytotaxonomy of some Cirsium species of the eastern United States, with a key to eastern species. Canad. J. Bot. 4 7 : 125 7 - 12 7 5 . | |||
| Cirsium terrae-nigrae Shinners | Cirsium engelmannii Rydb. | 18 | 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 engelmannii Rydb. | Cirsium engelmannii Rydb. | 18 | eFlora | |||
| ! | Cirsium grumosum (Hoffmanns. & Link) Willk. & Lange | Cirsium engelmannii Rydb. | 34 | Cave1962 | Moore & F. 1962a |