A very leafy jade!  This one looks similar to the jade plant (Crassula ovata) that I have excep

A very leafy jade!  This one looks similar to the jade plant (Crassula ovata) that I have except mine is smaller, and only has about three rows of leaves on each branch.  I wonder if this is a different species, or if mine could be like this someday under the right growing conditions.  Seen at the Berkshire Botanical Garden in Stockbridge, Mass.