Oxalidaceae
Leaves 3-foliolate Oxalidaceae
Petals pink to purplish or mauve or white
Leaves and peduncles basal, stems reduced to a short stock
Flowers in umbels on peduncles exceeding the leaves
Leaflets roughly triangular, 2–6 cm wide, sometimes only half as long at the midvein, almost glabrous. Petals purplish, less than 10 mm long. Widespread. Troublesome garden weed. Introd. from Mexico. Fl. summer–winter Oxalis latifolia
Leaflets obcordate, not tending to a pronounced triangular shape