Portulaca grandiflora is a succulent flowering plant in the family Portulacaceae, native to southern Brazil, Argentina, and Uruguay and often cultivated in gardens. It has many common names, including rose moss eleven o'clock, Mexican rose, moss rose, sun rose, rock rose, and moss-rose purslane.
It is also seen in South Asia and widely spread in most of the cities with old 18th- and 19th-century architecture in the Balkans.