In decisions regarding taxa of the Scrophulariaceae in Ohio, plants of Gratiola viscidula are assigned to var. shortii, Lindernia anagallidea is included within the circumscription of L. dubia as L. dubia var. anagallidea comb. et stat. nov., Penstemon digitalis is defined so as to include P. alluviorum, and Penstemon brevisepalus is excluded from the known State flora.