Gratiola is a genus of plants in the family Plantaginaceae. Most species are known generally as hedgehyssops. It includes 29 species native to temperate North America and Eurasia, and to Morocco, South America, Australia, and New Zealand. The genus was previously included in the family Scrophulariaceae.
Species
29 species are accepted.
Gratiola amphianthaD.Estes & R.L.Small – pool sprite, snorkelwort (southeastern United States)
Gratiola bogotensisCortés ex Pennell – (Colombia, Ecuador, and norhwestern Venezuela)
Gratiola brevifoliaRaf. – sticky hedgehyssop (southeastern United States and Texas)
Gratiola ebracteataBenth. ex A.DC. – bractless hedgehyssop (western Canada and western United States)
Gratiola floridanaNutt. – Florida hedgehyssop (southeastern United States)
↑Łańcucka-Środoniowa M.: Macroscopic plant remains from the freshwater Miocene of the Nowy Sącz Basin (West Carpathians, Poland) [Szczątki makroskopowe roślin z miocenu słodkowodnego Kotliny Sądeckiej (Karpaty Zachodnie, Polska)]. Acta Palaeobotanica 1979 20 (1): 3-117.