Hassemer, G. 2017.

Taxonomic and nomenclatural notes on neotropical Commelina (Commelinaceae), and an identification key for Brazil, Guyana, Paraguay, Suriname and Uruguay

. Phytotaxa. 303, 2 (Apr. 2017), 101–117. DOI:https://doi.org/10.11646/phytotaxa.303.2.1.