| Name | Heterostemma villosum P. Constantin |
| Authorship | P. Constantin |
| Rank | Species |
| Placed in | Heterostemma |
| Citation | 1912 Fl. Indo-Chine [P.H. Lecomte et al.] 4: 122 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Heterostemma villosum P. Constantin |
| Identification made in | [no date] (1) |