| Name | Olsynium douglasii (A. Dietrich) E. P. Bicknell |
| Authorship | (A. Dietrich) E. P. Bicknell |
| Rank | Species |
| Placed in | Olsynium Rafinesque |
| Contains | Olsynium douglasii var. inflatum (Suksdorf) Cholewa & Douglass M. Henderson |
| Citation | 1900 Bull. Torrey Bot. Club 27(5): 237 |
| Holdings | 32 Specimens held in the Harvard University Herbaria identified as Olsynium douglasii (A. Dietrich) E. P. Bicknell |
| Identification made in | [no date] (32) |