Commelina coelestis
1. Commelina coelestis Willd. (Am.) – A very rare and casual garden escape. First recorded in Lokeren in 1999 (border of a maize-field). Also observed in a road verge in Ham (Kwaadmechelen) in 2008. Perhaps less frequently cultivated nowadays and apparently seldom seen as an escape.
Selected literature:
Calderon de Rzedowski G. & Rzedowski J. (1988) Nota sobre el género Commelina (Commelinaceae) en el Valle de México con cambios en la nomenclatura de algunas de sus especies. Madroño 35: 16-22.