Rank Species | Higher classification Gleditsia | |
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Similar Gleditsia, Legumes, Gleditsia aquatica, Alnus subcordata, Gleditsia × texana |
The spikiest tree gleditsia caspica
Gleditsia caspica (Caspian locust or Persian honeylocust) is a species of Gleditsia native to western Asia, in the Caucasus region of Azerbaijan and northern Iran, close to the Caspian Sea.

It is a medium-sized deciduous tree growing to 12 m tall, with the trunk covered in numerous, 10–20 cm long branched spines. The leaves are pinnate or bipinnate, up to 25 cm long, with 12–20 leaflets; bipinnate leaves have six to eight pinnae. The leaflets are up to 5 cm long and 2 cm broad. The flowers are greenish, produced in racemes up to 10 cm long. The fruit is a pod 20 cm long and 3 cm broad.

It is closely related to Gleditsia japonica (syn. G. horrida) from eastern Asia, and is treated as a subspecies of it by some botanists, Gleditsia horrida subsp. caspica (Desf.) J.Paclt.

