| Name | Physaria occidentalis subsp. cinerascens (Maguire & A. H. Holmgren) O'Kane & Al-Shehbaz |
| Authorship | (Maguire & A. H. Holmgren) O'Kane & Al-Shehbaz |
| Rank | Subspecies |
| Placed in | Physaria occidentalis (S. Watson) O'Kane & Al-Shehbaz |
| Citation | 2002 Novon 12(3): 326 |
| Holdings | 13 Specimens held in the Harvard University Herbaria identified as Physaria occidentalis subsp. cinerascens (Maguire & A. H. Holmgren) O'Kane & Al-Shehbaz |
| Identification made in | [no date] (12), 1982 (1) |
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