Hello chaps and chap-esses. My daughter has a plant growing wild in her garden and spreading. The leaves look like oxalis, with three lobes and slender stems, each lobe dipped in the top like the shape of a heart. The flowers appear like a buttercup, yellow and spread open flat with five petals. If you pull out a leaf it comes away cleanly but leaves a root which looks like a small carrot. Tiz a new one on me. Any ideas?