Alpinia officinarum belongs to the ginger family and it is called "Lesser Galangal". It is an important herb and we use it extensively in home remedies. It is native to Asian continent. We call it "Chitharathai" in Tamil, "Kulanjan" in Hindi.
Tamil name: Chitharathai
Hindi name: Kulanjan
English name: Galangal roots
Botanical name: Alpinia galangal