හෙන්දිරික්කා[Hendirikka]/False Jalapa/Four o' clock, Marvel of Peru(Mirabilis jalapa)
Native herb of Peru. Introduced as an ornamental and cultivated in home gardens. Also escaped and naturalized in waste places. Flowers occurs in white, yellow, purple or pink forms. Flowers open in the late afternoon and close in the morning. Hence the vernacular name Four o' clock.