Collected
PRE 2000.
Iowa, United States
Locality: Numerous samples originally acquired from native prairie remnants within the central section of three tiers of counties located in Iowa. A total of 30 sites were sampled representing 17 counties including Buchanan (3 sites), Dubuque (2 sites), Jones, Black Hawk (3 sites), Polk, Webster (3 sites), Audubon, Johnson (3 sites), Delaware, Greene, Boone, Story (4 sites), Hardin, Calhoun, Jasper (2 sites), Shelby, Guthrie.