| Name | Lactuca biennis f. integrifolia (Torrey & A. Gray) Fernald |
| Authorship | (Torrey & A. Gray) Fernald |
| Rank | Forma |
| Placed in | Lactuca biennis (Moench) Fernald |
| GUID | urn:lsid:ipni.org:names:1150364-2 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Lactuca biennis f. integrifolia (Torrey & A. Gray) Fernald |
| Identification made in | 1969 (1) |
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