Sp. Pl. 1: 161, 1753
A pantropical weedy species, not certainly known as a native anywhere but clearly of neotropical origin. Widely distributed in disturbed damp bushy places, particularly along shaded tropical streams, mostly below 1600 m and probably native in this habitat in the Neotropics. It is also cultivated growing in gardens as high as 2800 m in Sucre (Bolivia) as well as in gardens and conservatories in cool temperate countries.
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