''Oxalis triangularis'', commonly called False Shamrock, is a species of edible perennial plant in the Oxalidaceae family. It is endemic to Brazil. This woodsorrel is typically grown as a houseplant but can be grown outside in USDA climate zones 8a-11, preferably in light shade.
The subspecies ''O. triangularis'' subsp. ''papilionacea'', in particular its cultivar 'Triangularis', is highly popular as a pot plant and known as Love Plant and Purple Shamrock.