Oxalis 'Mijke' is another of the great Oxalis regnellii cultivars that is similar to Oxalis regnellii 'Triangularis' except in the color of the leaf. Oxalis 'Triangularis' has a wide black edge to each purple leaf, while Oxalis 'Mijke' is missing the edge. The overall effect is a much brighter purple plant. From late spring through summer, the clumps are topped with mauve flowers held just above the foliage. In over 3 decades of growing this species, we have never had a single seedling.