Aparisthmium is a plant genus of the family Euphorbiaceae first described as a genus in 1840.Endlicher, Stephan Friedrich Ladislaus. 1840. Genera Plantarum 1112 in LatinTropicos It contains only one known species, Aparisthmium cordatum, native to South America and Costa Rica.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.De S.Secco, R. (2004). Alchorneae (Euphorbiaceae) (Alchornea, Aparisthmium e Conceveiba). Flora Neotropica, Monograph 93: 1-194.Oliveira-Filho, A.T. (2006). Catálogo das Árvores nativas de Minas Gerais: 1-423. Editora UFLA, Lavas, Brasil.Hokche, O., Berry, P.E. & Huber, O. (eds.) (2008). Nuevo Catálogo de la Flora Vascular de Venezuela: 1-859. Fundación Instituto Botánico de Venezuela.Webster, Grady L. 1994. Synopsis of the Generic and Suprageneric Taxa of Euphorbiaceae. Annals of the Missouri Botanical Garden 81(1):33-144. (see Aparisthmium discussion on page 82)

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