Arctium is a genus of biennial plants commonly known as burdock, family Asteraceae. Native to the Old World, several species have been widely introduced worldwide. Plants of the genus Arctium have dark green leaves that can grow up to 28` (71 cm) long. They are generally large, coarse and ovate, with the lower ones being heart-shaped. They are wo.... Found on http://en.wikipedia.org/wiki/Arctium
(Burdock, Gobo) This European biennial is commonly known as the Great Burdock or Gobo. It has large, rough foliage and grows quite large. It is grown mainly for its long, light brown root and is commonly cultivated in the Orient. Burdock takes up a lot of space, much more than Rhubarb, and may become a weed if not controlled.… Found on http://www.encyclo.co.uk/local/10004