This is known from remnants of marshy grassland in south-central states: mostly in Ill., Mo., Okl., Ark., Tex. and La., but with outlying reports as far as Kan., Ala. and Ga. (F, PL, W). The only verified record from Ky. is a coll. of C.W. Short (PH, GH) made in "barrens of Ky." during the 1820s; it was probably made near Hopkinsville in CHRI (M). There is also a recent report from CALL (herbarium of Ind. Univ. SE). There is a small population within Land-Between-the-Lakes in Stewart Co., Tenn. (APSC), about 9 mile south of the state line.