n. 高粱

[ noun ]
tall grasses grown for the elongated stiff-branched panicle used for brooms and brushes
<noun.plant>

broomcorn \broom"corn\, broom corn \broom" corn`\ (Bot.)
A tall variety of grass ({Sorghum vulgare} technicum), having
a joined stem, like maize, rising to the height of eight or
ten feet, and bearing its seeds on a panicle with long stiff
branches, of which brooms are made.