Oxalis? Oxalis looks like has three pedals, but this one only has three. I do not know that is leaves or pedals. Thank you!! I searched the pictures of purple shamrock. Looks very similar. Do you know it is leaves or pedals?
Your picture shows a single leaf, which has 3 leaflets. The flowers will be very pale pink in colour... with 5 petals. http://en.wikipedia.org/wiki/File:Oxalis-regnellii-atropurpurea.jpg Sorry Barbara... I was too slow selecting a good pic!
3 or more "heads" are always better than one. I have a bit, you have more and someone else even more. I used to pull anything that even looked like oxalis, because I had a kid that ate everything she could in the yard. yuk!
