Dear Andrew, It can be confusing. The beardless iris are a subgenus of the genus Iris. There are 16 series including Spuria, Louisiana, Pacific Coast etc. Some of these series have as few as one species, others are bigger. You can get an idea of where these series fit in the big picture by looking up this PBS page http://pacificbulbsociety.org/pbswiki/files/…. Ignore page 1, but look at P. 2 and following Your photo does look like 'Black Gamecock', an oldie, but goodie (Registered by Chowning in 1980). Parentage is unknown, but it reminds me of a fulva x giganticoerulea hybrid. Contray to the 'title' "Louisiana" iris, these are native from Missouri to the Carolinas, Texas to Florida and are very hardy. Although they grow best with the rhizome in water, they are dry summer tolerant once established. They also include the best red irises in the whole genus. Finally check out the Society for Louisiana Iris at http://www.louisianas.org/ Great irises. Best Jim W. -- Dr. James W. Waddick 8871 NW Brostrom Rd. Kansas City Missouri 64152-2711 USA Ph. 816-746-1949 Zone 5 Record low -23F Summer 100F +