HAYS, Kansas — Keith Harmoney crouches down in a pale yellow field outside his office. He pushes back a cluster of tightly packed two-foot-tall grass, revealing the ground underneath.
In a typical native Kansas grassland, he’d expect to find roughly a dozen different plant species in the square foot of earth between his boots.
“Here, all we see — basically for 10, 11, 12 yards — is just one single species,” Harmoney said. “That’s Old World bluestem.”