(n) type genus of the Rubiaceae; Old World herbs and subshrubs grown for their medicinal properties and for dye substances extracted from their roots, Syn.genus Rubia
(n) widely distributed family of mostly tropical trees and shrubs and herbs; includes coffee and chinchona and gardenia and madder and bedstraws and partridgeberry, Syn.family Rubiaceae, madder family
a. [ L. rubia madder, fr. rubeus red. ] (Bot.) Of or pertaining to a very large natural order of plants (Rubiaceae) named after the madder (Rubia tinctoria), and including about three hundred and seventy genera and over four thousand species. Among them are the coffee tree, the trees yielding peruvian bark and quinine, the madder, the quaker ladies, and the trees bearing the edible fruits called genipap and Sierre Leone peach, besides many plants noted for the beauty or the fragrance of their blossoms. [ 1913 Webster ]
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