| Name | Arenaria congesta var. suffrutescens (A. Gray) B. L. Robinson |
| Authorship | (A. Gray) B. L. Robinson |
| Rank | Variety |
| Placed in | Arenaria congesta Nuttall |
| Citation | 1897 Syn. Fl. N. Amer. 1(1[2]): 241 |
| Holdings | 19 Specimens held in the Harvard University Herbaria identified as Arenaria congesta var. suffrutescens (A. Gray) B. L. Robinson |
| Identification made in | [no date] (6), 1919 (13) |