Crossword clues for ecua ecua S. Amer. land O.A.S. member: Abbr. Quito's land: Abbr. S. American land Land next to Peru: Abbr. Quito's country: Abbr. Andean land: Abbr. Neighbor of Peru: Abbr. Its cap. is Quito Land in S.A. Wikipedia Ecua Ecua is a plant genus in the dogbane family Apocynaceae, first described in 1996. It contains only one known species, Ecua moluccensis, endemic to Maluku Province in eastern Indonesia.