| Name | Ptilagrostis mongholica subsp. porteri (Rydberg) Barkworth |
| Authorship | (Rydberg) Barkworth |
| Rank | Subspecies |
| Placed in | Ptilagrostis mongholica (Turczaninow ex Trinius) Rydberg |
| GUID | urn:lsid:ipni.org:names:1023236-2 |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Ptilagrostis mongholica subsp. porteri (Rydberg) Barkworth |
| Identification made in | [no date] (1), 2013 (1) |
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