| Name | Spergularia arbuscula (Gay) I. M. Johnston |
| Authorship | (Gay) I. M. Johnston |
| Rank | Species |
| Placed in | Spergularia |
| Holdings | 6 Specimens held in the Harvard University Herbaria identified as Spergularia arbuscula (Gay) I. M. Johnston |
| Identification made in | [no date] (1), 1937 (1), 1938 (3), 1992 (1) |