What Chinese plant is contained in longevinex?
http://www.nwcb.wa.gov/weed_info/Polygonum_sachalinense%20.html Giant Knotweed (Polygonum sachalinense F. Schmidt ex Maxim)comparison of giant knotweed leaf with a Japanese knotweed leaf Family: Polygonaceae Description and Variation: Polygonum sachalinense, or giant knotweed, is closely related to P. cuspidatum (Japanese knotweed), and they are similar in appearance. The main difference is size, a somewhat variable characteristic. Both the leaf size and overall plant size are bigger in giant knotweed. The photograph compares the smaller Japanese knotweed leaf to the leaf from a giant knotweed. Giant knotweed (P. sachalinense) is an herbaceous perennial, strongly rhizomatous, growing over 12 feet tall. The hollow stems are jointed and swollen at the nodes, giving a bamboo-like appearance. The leaf arrangement is alternate. Leaves are petiolate, and they often exceed one foot long, and are 2/3 a
