| Name | Calystegia occidentalis var. tomentella (Greene) Brummitt |
| Authorship | (Greene) Brummitt |
| Rank | Variety |
| Placed in | Calystegia occidentalis (A. Gray) Brummitt |
| Citation | 1974 Kew Bull. 29(3): 501 |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Calystegia occidentalis var. tomentella (Greene) Brummitt |
| Identification made in | [no date] (2) |
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