It's also known as broom corn. For a while during 1944, my county in southwest Kansas had a POW camp in which captive German WW II soldiers harvested wheat and broom corn. At the time, broom corn was widely grown. It has become a much less common as a commodity nowadays.
It is the South Asian form of what we call a corn broom. It differs from our brooms in that it lacks a long wooden or plastic handle, so one has to bend over to use it.