Kudzu is a vine that was brought into the US in the late 1800's. It was used to stabilize soil on hillsides along highways. It grows at an alarming rate and takes over just about every plant that it encounters. It is a really beautiful green in the summer months but in the winter months it is a really ugly brown. It does keep the banks of rivers and embankments along highways from erroding and causing mud from entering the waterways.