1.Itä-Aasiasta kotoisin oleva nopeakasvuinen köynnöskasvi, jolla on tärkkelyspitoiset juuret ja purppuranväriset kukat
1.fast-growing vine from eastern Asia having tuberous starchy roots and hairy trifoliate leaves and racemes of purple flowers followed by long hairy pods containing many seeds; grown for fodder and forage and root starch; widespread in the southern United States