Mirabilis jalapa, the marvel of Peru or four o'clock flower, is the most commonly grown ornamental species of Mirabilis plant
Scientific classification
Kingdom: Plantae
Order: Caryophyllales
Family: Nyctaginaceae
Genus: Mirabilis
Species: M. jalapa
In our country it is called sandhyamalati (Bengali: সন্ধ্যামালতী), meaning "evening flower".