| Noun | 1. | Plantaginales - coextensive with the family Plantaginaceae plant order - the order of plants class Dicotyledonae, class Dicotyledones, class Magnoliopsida, Dicotyledonae, Dicotyledones, Magnoliopsida - comprising seed plants that produce an embryo with paired cotyledons and net-veined leaves; divided into six (not always well distinguished) subclasses (or superorders): Magnoliidae and Hamamelidae (considered primitive); Caryophyllidae (an early and distinctive offshoot); and three more or less advanced groups: Dilleniidae; Rosidae; Asteridae family Plantaginaceae, Plantaginaceae, plantain family - cosmopolitan family of small herbs and a few shrubs; most are troublesome weeds |