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DIEFFENBACHIA
The genus Dieffenbachia of the arum family, Araceae, comprises about 30 species of tropical American shrublike evergreen plants with fleshy stems. Species of Dieffenbachia are commonly used as houseplants, particularly D. amoena, which has leaves that are dark green with irregular creamy-white zones radiating from the midrib. The bitter sap of the mother-in-law plant, D. sequine, is reported to cause the tongue and throat to swell; hence the common name "dumb cane".
