Gleditsia /ɡlɨˈdɪtsiə/ (locust) is a genus of trees in the family Fabaceae, subfamily Caesalpinioideae, native to North America and Asia. The Latin name commemorates Johann Gottlieb Gleditsch, director of the Berlin Botanical Garden, who died in 1786.There are 12 species:Gleditsia amorphoides (Griseb.) Taubert Gleditsia aquatica Marshall - Water locustGleditsia australis F. B. Forbes & HemsleyGleditsia caspica Desf.