| Name | Cirsium oligophyllum var. nikkoense (Nakai) Kitamura |
| Authorship | (Nakai) Kitamura |
| Rank | Variety |
| Placed in | Cirsium oligophyllum Matsumura |
| Citation | 1978 Acta Phytotax. Geobot. 29: 126 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Cirsium oligophyllum var. nikkoense (Nakai) Kitamura |
| Identification made in | [no date] (1) |