Vachellia leucophloea (Hindi: रेवंजा), also called reonja, is a moderate-sized tree native to South and Southeast Asia.

[1] Vachellia leucophloea grows natively in India, Nepal, Pakistan, Sri Lanka, Myanmar, Thailand, Vietnam, and Indonesia.

[1] The bark extracts of Vachellia leucophloea are used in Pakistani traditional medicine as an astringent, a bitter, a thermogenic, a styptic, a preventive of infections, an anthelmintic, a vulnerary, a demulcent, an expectorant, an antipyretic, an antidote for snake bites and in the treatment of bronchitis, cough, vomiting, wounds, ulcers, diarrhea, dysentery, internal and external hemorrhages, dental caries, stomatitis, and intermittent fevers and skin diseases.

[2] An ethanolic extract ointment has shown marked wound healing activity in trials.

[3] The bark is used to prepare a spirit from sugar and palm juice, and in times of scarcity it is ground and mixed with flour.