I have added a photo of the flowers of the double Oxalis compressa to the wiki that Ron Vanderhoff shared with me during the time we were changing the wiki that I never got added. And I've added some more photos of the single Oxalis compressa that came to me from Uli. Some of these Oxalis that have more than one flower per scape can be easily confused. In the text for Oxalis compressa on the wiki it refers to an entry from Christiaan van Schalkwyk that explains some of the differences between the look alikes. I once was given bulbs of O. pes-caprae which is a huge pest in a lot of areas of coastal California as Oxalis compressa which promptly got destroyed once I figured it out. http://pacificbulbsociety.org/pbswiki/index.php/… According to Christiaan on the wiki: Oxalis compressa can be identified by the flattened or compressed leaf stalks. Oxalis pes-caprae has a brown bulb, without conspicuous longitudinal grooves. It may or may not have a stem. The bulbs of Oxalis copiosa and Oxalis haedulipes are similar: greyish and with conspicuous longitudinal grooves. Oxalis copiosa never has a stem, while Oxalis haedulipes always has an exserted stem. Cape Plants describes O. compressa as like O. pes-caprae but petioles flattened and peduncles 3-6 flowered whereas O. pes-caprae can have up to 20 flowers. I don't know about the double forms. The O. compressa that Uli sent me is such an amazing bright yellow flower, but I haven't found it as easy to grow in my climate as I'd like. And I've never gotten the one from Alberto through the BX in 2008 to bloom. It apparently is happier in Missouri than in my conditions in California. I guess that means we won't have to worry about it escaping and taking over. I might be able to do better if it were grown inside or the greenhouse, but I don't really have space for it there. You can compare the double flowered photos of each of the flowers now on the wiki, but I'm not sure that will help in the identification: The photo supplied by Ron Vanderhoff labeled O. compressa http://pacificbulbsociety.org/pbswiki/files/… The photo supplied by Pieter van der Walt labeled O. pes-caprae http://pacificbulbsociety.org/pbswiki/files/… Mary Sue Mary Sue Ittner California's North Coast Wet mild winters with occasional frost Dry mild summers