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.
World map indicating the coverage areas of the floras used in this study. Pink = Hawaii (USA), light orange = California (USA), dark blue = Intermountain (USA), gray = Great Plains (USA), green = Northeast (USA), light blue = British Isles, yellow = Europe, dark orange = Victoria (Australia).
