There are over 400 known cultivars of jujube, though few are cultivated in the U.S. Also, there are 20 species of Ziziphus of which three species are native to the U.S.)
known cultivars of jujube, though few are cultivated in the U.S. Also, there are 20 species of Ziziphus of which three species are native to the U.S.)
http://www.hort.purdue.edu/new...
http://www.crfg.org/pubs/ff/ju...
