Tanaecium is a genus of flowering plants in the family Bignoniaceae, native to south and Central America.

Species Tanaecium affinis (A.H Gentry) L.G. Lohmann Tanaceium apiculatum A.H Gentry Tanaecium bilabiatum (Sprague) L.G. Lohmann Tanaceium caudiculatum (Standl) L.G. Lohmann Tanaceium crucigerum Seem. Tanaceium cyrtanthum (Mart. ex DC.) Bureau & K.Schum. Tanaecium duckei A. Samp. Tanaecium exitiosum Dugand Tanaecium jaroba Sw. Tanaecium neobrasiliensis Baill. L.G. Lohmann Tanaecium nocturnum Tanaecium pyramidatum (Rich.) L.G. Lohmann Tanaecium revillae (A.H. Gentry) L.G. Lohmann Tanaecium selloi (Spreng.) L.G. Lohmann Tanaecium tetragonolobum (Jacq.) L.G. Lohmann Tanaecium truncatum (A. Samp.) L.G. Lohmann Tanaecium xanthophyllum (DC.) L.G. Lohmann

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