| Name | Lactuca canadensis f. angustipes Wiegand |
| Authorship | Wiegand |
| Rank | Forma |
| Placed in | Lactuca canadensis Linnaeus |
| GUID | urn:lsid:ipni.org:names:290638-2 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Lactuca canadensis f. angustipes Wiegand |
| Identification made in | 1921 (1) |
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