Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Growth status of E. crassipes in two types of eutrophic water bodies: (a) to (c): the roots and leaves turned white and rotted gradually (in the swine manure wastewater); and (d) to (e) the roots were purple and grew vigorously (in the river).
