| Name | Pileolaria extensa Arthur |
| Authorship | Arthur |
| Rank | Species |
| Placed in | Pileolaria |
| Citation | 1907 N. Amer. Fl. 7(2): 148 |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Pileolaria extensa Arthur |
| Identification made in | [no date] (2) |
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