INDIA: Common in rice fields throughout the plains; HIMACHAL PRADESH: Chamba, Kangra, Kulu.

Majuli: Bongaon. A common weed of wet fields, moist and swampy places and abundant in cultivated fields as rice and vegetables.

Throughout the plains and warmer places in the lower hills of India. South and SE.Asia from India to Japan. Orissa: Common along streams and water courses, in wet or marshy places.