KUDZU
kudzu, kudzu vine, Pueraria lobata
(noun) 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
Source: WordNet® 3.1
Etymology
Noun
kudzu (usually uncountable, plural kudzus)
An Asian vine (several species in the genus Pueraria, but mostly Pueraria montans var. lobata, syn. Pueraria lobata in the US), grown as a root starch, and which is a notorious invasive weed in the United States.
Synonyms: Japanese arrowroot, mile-a-minute
Usage notes
• The kudzu invasive in the US apparently includes natural hybrids of four species of Pueraria: Pueraria montana, Pueraria edulis, Pueraria phaseoloides, and Pueraria tuberosa
Source: Wiktionary