United States, Illinois, Champaign, Champaign. Dodds Park, west end of softball fields, artificial steep slope. Between Mattis Avenue and Parkland College. Rising 7.5 minute quadrangle.
T. 19N, R. 8E, SW1/4 NE1/4 SECT. 3
Disturbed loess and black alkaline clay on steep slope; the loess source unknown - not from the area.; With Ambrosia psilostachya, Cirsium arvense, Bouteloua curtipendula, Solidago canadensis, Schizachyrium scoparium.; Locally common biennial-perennial herb, flowers pinkish-purple; foliage grey-green; most in fruit.