| Name | Lactuca macrophylla A. Gray |
| Authorship | A. Gray |
| Rank | Species |
| Placed in | Lactuca Linnaeus |
| Citation | 1884 Syn. Fl. N. Amer. 1(2): 444 |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Lactuca macrophylla A. Gray |
| Identification made in | [no date] (2) |
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