Dendrocousinsia is a plant genus of the family Euphorbiaceae first described as a genus in 1913.Millspaugh, Charles Frederick. 1913. Publications of the Field Museum of Natural History, Botanical Series 2(9): 374Tropicos, Dendrocousinsia Millsp. The entire genus is endemic to the Island of Jamaica.Kew World Checklist of Selected Plant FamiliesGovaerts, R., Frodin, D.G. & Radcliffe-Smith, A. (2000). World Checklist and Bibliography of Euphorbiaceae (and Pandaceae) 1-4: 1-1622. The Board of Trustees of the Royal Botanic Gardens, Kew.

Species Dendrocousinsia alpina Fawc. & Rendle 1919 - E Jamaica Dendrocousinsia fasciculata Millsp. 1913 - NW Jamaica Dendrocousinsia spicata Millsp. 1913 - SC Jamaica

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