| Name | Myriophyllum pygmaeum Mattfeld |
| Authorship | Mattfeld |
| Rank | Species |
| Placed in | Myriophyllum |
| Remarks | [confirmed] [imported from GBIF] |
| Citation | 1938 Bot. Jahrb. Syst. 69: 275 |
| Holdings | 4 Specimens held in the Harvard University Herbaria identified as Myriophyllum pygmaeum Mattfeld |
| Identification made in | [no date] (4) |
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