cut-leaved water-milfoil
Myriophyllum pinnatum (Walter) Britton, Sterns & Poggenb.

Myriophyllum pinnatum is a species of aquatic plant in the family Haloragaceae. It is commonly known as cut-leaved water-milfoil and is found in various regions across North America and beyond.
Description
Myriophyllum pinnatum, also known as cut-leaved water-milfoil, is a species of the genus Myriophyllum. It belongs to the family Haloragaceae. This plant is distributed in several locations including British Columbia, New Brunswick, Saskatchewan, and parts of the United States such as Alabama, Arkansas, Connecticut, and Florida. It was first described in 1888 by Britton, Sterns & Poggenb. Common names for this species include green parrot's-feather and pinnate water-milfoil. It is a notable aquatic plant with a wide geographic range.
Other common names
cut-leaved water-milfoilgreen parrot's-featherpinnate water-milfoilcutleaf watermilfoilEastern water-milfoil
Distribution
British Columbia · New Brunswick · Saskatchewan · Nearctic · CU · Global · Alabama · Arkansas · Connecticut · Cuba · Delaware · Florida · Georgia · Illinois · Indiana · Iowa · Jamaica · Kansas · Kentucky · Louisiana · Maryland · Massachusetts · Mexico Northeast · Mexico Southwest · Minnesota · Mississippi · Missouri · Nebraska · New Jersey · New Mexico
Synonyms
Myriophyllum verticillatum var. cheneyiMyriophyllum scabratumPotamogeton pinnatum