Oxalis lasiandra

Oxalis lasiandra, commonly known as sour grass or wood sorrel, is a perennial plant native to the northeastern and northwestern regions of Argentina and southern Brazil, extending into Uruguay. It thrives in light to partial shade with moist soil that is well-drained and sandy to medium-textured. This plant prefers full sun to partial shade and grows up to 0.3 meters tall. Known for its edible leaves, which can be used in salads or as a souring agent, O. lasiandra stands out with its distinctive clover-like leaves and light green coloration.