| Name | Streptocalyx williamsii L. B. Smith |
| Authorship | L. B. Smith |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Streptocalyx Beer |
| GUID | urn:lsid:ipni.org:names:246462-2 |
| Citation | 1932 Contr. Gray Herb. 98: 14 |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Streptocalyx williamsii L. B. Smith |
| Identification made in | [no date] (1), 1965 (1) |