Lavender Sorrel ,Oxalis barrelieri from West Indies, Central and South America.

Lavender Sorrel (Oxalis barrelieri) is a herbaceous plant from the family Oxalidaceae, native to West Indies, Central and South America.

🌿 It is often found growing as a weed but is also a medicinal plant used mainly for treatment of stomach disorders.

🌿The leaves are trifoliate ( having 3 leaflets each). The leaflets, as in other species of the genus, fold back and droop at night.

🌿Its leaves contain oxalic acid that gives them a peculiar sharp sour taste. Though edible they should never be consumed in large quantities as the oxalic acid binds with calcium in the body and erodes it, leading to calcium deficiency and kidney damage.

🌷The flowers are faintly pinkish turning white as they mature.The throat of these tubular flowers is bright yellow and the petals have purplish veins. The fruit is a capsule that splits open by valves. The seeds have a fleshy coat, which curls back elastically, ejecting the true seed. 

https://en.m.wikipedia.org/wiki/Oxalis_barrelieri

https://uforest.org/Species/O/Oxalis_barrelieri.php

Reference 

https://www.facebook.com/myplantdiaries?mibextid=ZbWKwL

Plants of Singapore