Locally abundant in shady or moist places in the Laboratory Clearing, especially on sidewalks, concrete, or rock walls; rare elsewhere. Flowers and fruits throughout the year. Throughout the American tropics. In Panama, known from tropical moist forest in the Canal Zone, Bocas del Toro, Colón, San Blas, and Panama, from premontane wet forest in Cocle and Panama, and from tropical wet forest in Colón (Portobelo).