| Name | Lactuca umbellata Mattfeld |
| Authorship | Mattfeld |
| Rank | Species |
| Placed in | Lactuca Linnaeus |
| Citation | 1929 Bot. Jahrb. Syst. 62(5): 449 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Lactuca umbellata Mattfeld |
| Identification made in | [no date] (1) |