Gratiola is a genus of plants in the family Plantaginaceae. Most species are known generally as hedgehyssops. The genus was previously included in the family Scrophulariaceae. Species include: * Gratiola amphiantha - pool sprite, snorkelwort * - golden hedgehyssop * Gratiola brevifolia - sticky hedgehyssop * Gratiola ebracteata - bractless hedgehyssop * - yellow hedgehyssop * Gratiola floridana - Florida hedgehyssop * Gratiola heterosepala - Boggs Lake hedgehyssop * Gratiola neglecta - clammy hedgehyssop * Gratiola officinalis - common hedgehyssop * Gratiola peruviana - Austral brooklime (native to South America and Australasia) * - Hairy brooklime (native to Australia) * Gratiola quartermaniae - limestone hedgehyssop * - branched hedgehyssop * - roundfruit hedgehyssop