What is "catjang"

n. A cowpea native to Africa, (taxlink Vigna unguiculata species noshow=1), sometimes (taxlink Vigna unguiculata subsp. cylindrica subspecies status=not accepted noshow=1), a densely-branched shrubby perennial grown for animal fodder or food.

Catjang (Vigna unguiculata subsp. cylindrica) is a subspecies of cowpea. The catjang plant is native to Africa, and is an erect densely branched shrubby perennial of Old World tropics. It now grows in other warm regions, as well. In the US, it is grown primarily as fodder, but elsewhere is used as a food crop. The name comes from Indonesian and Malay kacang, a generic word for beans and nuts.