| Name | Arenaria fendleri var. tweedyi (Rydberg) Maguire |
| Authorship | (Rydberg) Maguire |
| Rank | Variety |
| Placed in | Arenaria fendleri A. Gray |
| Citation | 1947 Bull. Torrey Bot. Club 74(1): 50 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Arenaria fendleri var. tweedyi (Rydberg) Maguire |
| Identification made in | [no date] (1) |