Myriophyllum verticillatum subsp. pectinatum (Wallroth) Piper & Beattie nom. illeg.

Myriophyllum verticillatum subsp. pectinatum (Wallroth) Piper & Beattie nom. illeg. is a synonym sensu FNA Ed. Comm., 2021 of:

Myriophyllum verticillatum Linnaeus, an accepted species name sensu FNA Ed. Comm., 2021.