| Name | Sonchus arvensis var. glabrescens Günther, Grabowski & Wimmer |
| Authorship | Günther, Grabowski & Wimmer |
| Rank | Variety |
| Placed in | Sonchus arvensis Linnaeus |
| Holdings | 4 Specimens held in the Harvard University Herbaria identified as Sonchus arvensis var. glabrescens Günther, Grabowski & Wimmer |
| Identification made in | [no date] (4) |