United States, Illinois, Cass, Beardstown; West side of Boulevard Road, 0.8 mile south of Route 125; Arenzville West 7.5 minute quadrangle. South side of marshes at sand hill.
T. 18N, R. 12W, SE1/4 SE1/4 SE1/4 Sect. 22
South side of marshes at sand hill. Flowers dark purple, anthers pale orange; locally common shrub 4 to 6 feet tall. With Salix exigua, roadside marsh.