Dahlia brevis P.D. Sørensen Dahlia brevis P.D. Sørensen, Rhodora 71: 368. 1969 sec. Carrasco-Ortíz & al. 2019=Dahlia pubescens S. Watson in Proc. Amer. Acad. Arts 26: 142. 1892 syn. sec. POWO 2019