| Name | Arenaria congesta var. subcongesta S. Watson |
| Authorship | S. Watson |
| Rank | Variety |
| NomenclaturalStatus | NomLeg |
| Placed in | Arenaria congesta Nuttall |
| Holdings | 52 Specimens held in the Harvard University Herbaria identified as Arenaria congesta var. subcongesta S. Watson |
| Identification made in | [no date] (40), 1919 (10), 1921 (2) |
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