I can add, at least, that the specimen that I acquired as Oxalis herrerae is in fact O. herrerae, at least according to this description and site. My pant is not as green as many photos since it is not kept in a cool greenhouse and grown quite lean. I am still a little confused, but my plant is the same as listed on this site. So , I feel a little more confident! Matt Mattus Worcester, MA USA Zone 5b