Noun | 1. | Centranthus - genus of southern European herbs and subshrubs asterid dicot genus - genus of more or less advanced dicotyledonous herbs and some trees and shrubs family Valerianaceae, valerian family, Valerianaceae - genus of mostly herbs having a characteristic fetid odor Centranthus ruber, French honeysuckle, red valerian - European herb with small fragrant crimson or white spurred flowers |