• 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
• noun:   East Indian spiny tree having twice-pinnate leaves and yellow flowers followed by flat pods; source of black catechu
• noun:   thorny Eurasian shrub with dry woody winged fruit
• noun:   spiny tree having dark red edible fruits

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