This is my plant. I posted it several years ago to Agave Leopoldii. In fact I thought I submitted it as a new entry and it was accepted. Looks like they combined two entries into one. Here is more information on the plant.
http://www.yuccado.com/agave-x.... Yuccado is a very expert nursery specializing in these plants. Here is some more info
http://plantlust.com/plants/ag...
Someone has combined the two plants and placed Leopoldii as a synonym for parryi. They are two different plants and I don't think should have been combined.