
FILE - A tiny Tiehm's buckwheat sprouts on Feb. 10, 2020, at a University of Nevada campus greenhouse, in Reno, Nev. (AP Photo/Scott Sonner, File)

FILE - A tiny Tiehm's buckwheat sprouts on Feb. 10, 2020, at a University of Nevada campus greenhouse, in Reno, Nev. (AP Photo/Scott Sonner, File)