United States, Minnesota, Anoka, Anoka Co., Allison Savanna. N1/2 of NE1/4 of Sec.2, t33N, R23W. Collected in NE corner of tract;Helen Allison Savanna Scientific Natural Area;033N;23W;2
45.377702 -93.173879 +-800m. WGS84
On gentle S facning slope, in well drained and fully exposed sandy soil. Assoc. with Koeleria cristata, Sisyrinchium campestre, and Penstemon grandiflorus. This area burned annually in spring.