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.
Occurrence of Köppen–Geiger climates (Trewartha and Horn, 1980) in North America (left pane) within which S. tridentata occurs and the same climates in Europe (right pane). The pane at the bottom shows the key scheme colour used for the different climates: Cfa = Humid subtropical climate, Cfb = Temperate oceanic climate, Dfa = Hot summer humid continental climate, Dfb = Warm summer humid continental climate, Dfc = Subarctic climate
