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.
Nodes represent taxa, while the color code denotes the taxon constraints: red nodes are “never in” constraints, green nodes are “in”, yellow nodes are dubious (no decisions have been made).
