One of the most unusual plants at Franklin Park Conservatory and Botanical Gardens is the endangered giant dioon (Dioon spinulosum). If you visit soon, you might be able to see it in bloom. In its ...
• The giant dioon (Dioon spinulosum) is a plant classified as a cycad -- a cone-bearing plant with fern or palmlike fronds radiating from a central woody trunk. These cycads date as far back as the ...