Rubiaceae - widely distributed family of mostly tropical trees and shrubs and herbs; includes coffee and chinchona and gardenia and madder and bedstraws and partridgeberryasterid dicot family - family of more or less advanced dicotyledonous herbs and some trees and shrubs order Rubiales, Rubiales - an order of dicotyledonous plants of the subclass Asteridae; have opposite leaves and an inferior compound ovary genus Rubia, Rubia - type genus of the Rubiaceae; Old World herbs and subshrubs grown for their medicinal properties and for dye substances extracted from their roots genus Gardenia - large genus of attractive Old World tropical shrubs and small trees genus Genipa - tropical American evergreen trees or shrubs bearing yellow flowers and succulent edible fruit with a thick rind genus Hamelia - evergreen tropical American shrubs or small trees genus Nauclea, Nauclea - small genus of evergreen tropical shrubs or trees with smooth leathery leaves genus Pinckneya, Pinckneya - small genus of shrubs or small trees of southeastern United States and northern South America |