Occasional, on steep lakeside banks on the north and east sides of the island, especially along Buena Vista Reach near Fairchild Point. The species is usually restricted to steep banks elsewhere in Panama also. Flowering especially at the beginning of the rainy season (April to October). Seeds are probably wind dispersed. Costa Rica to Ecuador and Bolivia. In Panama, known from tropical moist forest in the Canal Zone and Panama, from premontane moist forest in Chiriqui, and from premontane wet forest in Colón, Coclé, and Panama.