Aralia spinosa

Aralia spinosa, commonly known as devil's walking stick, is a woody species of plant in the genus Aralia of the family Araliaceae. It is native to eastern North America. The various names refer to the viciously sharp, spiny stems, petioles and even leaf midribs. It has also been known as Angelica-tree. This species is sometimes called Hercules' club, prickly ash or prickly elder. These are common names it shares with the unrelated Zanthoxylum clava-herculis. For this reason, Aralia spinosa is sometimes confused with that species and mistakenly called the toothache tree. It does not have the medicinal properties of Zanthoxylum clava-herculis. Aralia spinosa is occasionally cultivated for its exotic or tropical appearance because of its large lacy compound leaves. It is closely related to the Asian species Aralia elata, a more commonly cultivated species with which it is easily confused....read more on Wikipedia.