(Kellogg) A. Heller.
Erect perennial, to 1 ½ ft., stems slender, simple of few-branched, leafy, more or less retrorsely, scabrous.
Leaves sessile or nearly so, ovate to elliptic, about 1 in. long, minutely crenate.
Calyx with appendages, corolla pale blue, to 5/8 in. long, campanulate.
Coastal fresh water swamps.