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Published 2014
Two close relations, of which the first belongs to Asia, the second to tropical Africa, and which are also eaten like potatoes, are: C. blumei, sayabana or Jacob’s coat; and Plectranthus esculentus (syn Coleus dazo), Livingstone or Kaffir potato, daju, or rizuka. However one calls them, these vegetables are of some importance regionally as cultivated crops, capable of playing understudy to the true potato in climates where the latter would not thrive.