| Name | Ipomoea trifida var. ymalensis House |
| Authorship | House |
| Rank | Variety |
| Placed in | Ipomoea trifida (Kunth) G. Don |
| Citation | 1908 Ann. New York Acad. Sci. 18: 254 |
| Holdings | 3 Specimens held in the Harvard University Herbaria identified as Ipomoea trifida var. ymalensis House |
| Identification made in | [no date] (3) |
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