| Name | Vigna gracilicaulis (Ohwi) Ohwi & H. Ohashi |
| Authorship | (Ohwi) Ohwi & H. Ohashi |
| Rank | Species |
| Placed in | Vigna Savi |
| Citation | 1969 J. Jap. Bot. 44: 30 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Vigna gracilicaulis (Ohwi) Ohwi & H. Ohashi |
| Identification made in | 2016 (1) |