United States, Minnesota, Polk, Polk Co.; on W side of highway; T150N R40W SE1/4 of NE1/4 of Sec 35;;150N;40W;35
47.768484 -95.740676 +-969m.
in very dry gravel hill prairie dominated by Stipa comata. Soil very dry sand and gravel; associated with Poa pratensis, Petalostemon purpureum, Chamaerhodos nuttalii, Oenothera biennis, Bouteloua