Protologue Description: Var. piletocarpa var nov. Capsulis dense adpresso-puberulis canescentibus eviscidis, Capsules finely and densely adpressed puberulent, canescent, nonviscid.-Prince Edward Island southward to New Jersey, also in Wyoming, and introduced into Europe. Not as common as the typical form on the coastal plainor in the Mississippi Valley. (TYPE in Gray Herb.. "Old gravel pit," Alstead, New hampshire, 1901, E.F. Williams.)