| Name | Joinvillea ascendens subsp. borneensis (Beccari) Newell |
| Authorship | (Beccari) Newell |
| Rank | Subspecies |
| Placed in | Joinvillea ascendens Gaudichaud ex Brongniart & Gris |
| Citation | 1969 J. Arnold Arbor. 50(4): 549 |
| Holdings | 34 Specimens held in the Harvard University Herbaria identified as Joinvillea ascendens subsp. borneensis (Beccari) Newell |
| Identification made in | [no date] (34) |