Notes on the presence of Justicia secunda (Acanthaceae) in Cuba.

A detailed and illustrated characterization of the botanical species denominated Justicia secunda, exotic plant cultivated as medicinal and ornamental in Cuba, probably of recent introduction, is presented, in order to facilitate its identification and differentiation from the plants with it is usually confused: Justicia spicigera and Justicia candicans. The work trait to get the attention of the Cuban scientific community about the promissory ethnobotany of the plant, because of the interesting medicinal properties that people attributed, as well as on its possible naturalization in the country and potentialities as an invasive plant