''Amaranthus cannabinus'' is a plant species also known as salt marsh water hemp or salt marsh pigweed. It is a herbaceous perennial found in most of the eastern
United States
The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily located in North America. It consists of 50 states, a federal district, five major unincorporated territorie ...
. It grows from 1 to 3 m in height. It is often mistaken for ''
Amaranthus australis''.
References
cannabinus
Flora of the Eastern United States
Plants described in 1753
Taxa named by Carl Linnaeus
{{Amaranthaceae-stub