Ecua is a plant genus in the family Apocynaceae, first described in 1996. It contains only one known species, Ecua moluccensis.
It is endemic to Maluku Province in eastern Indonesia.Kew World Checklist of Selected Plant FamiliesMiddleton, D.J. (2007). Apocynaceae (subfamilies Rauvolfioideae and Apocynoideae). Flora Malesiana 18: 1-474. Noordhoff-Kolff N.V., Djakarta.
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