Jerusalem thorn (Noun) — East Indian spiny tree having twice-pinnate leaves and yellow flowers followed by flat pods; source of black catechu.
Jerusalem thorn (Noun) — Large shrub or shrubby tree having sharp spines and pinnate leaves with small deciduous leaflets and sweet-scented racemose yellow-orange flowers; grown as ornamentals or hedging or emergency food for livestock; tropical America but naturalized in southern United States.
Jerusalem thorn (Noun) — Spiny tree having dark red edible fruits.
Jerusalem thorn (Noun) — Thorny Eurasian shrub with dry woody winged fruit.