| Name | Williamsia viridescens Elmer |
| Authorship | Elmer |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Williamsia |
| GUID | urn:lsid:ipni.org:names:770550-1 |
| Citation | 1934 Leafl. Philipp. Bot. 9: 3215 |
| Holdings | 6 Specimens held in the Harvard University Herbaria identified as Williamsia viridescens Elmer |
| Identification made in | [no date] (6) |