Oxalis massoniana is commonly seen in alpine plant collections and on the showbench. I was surprised to learn that in the wild it is very rare, known from a single, threatened site at the top of Vanrhyns Pass in South Africa. I was more surprised to learn that there is a yellow-flowered form called var. flavescens. I have never seen or heard of this form before - does anyone know if it is in cultivation at all in the UK?
Paul
