Related Program: NatureNotes Greenbrier By Rudy Mancke • Apr 9, 2019 Related Program: NatureNotes ShareTweetEmail Credit SC Public Radio The thick, knotty, underground "stems" (rhizomes) of Greenbrier (Smilax) are tough. The vine is hard to elimnate, once it is established. Listen Listening... / 1:00 Listen... NatureNotes is a production of South Carolina Public Radio. Tags: NatureNatureNotesscetv.orgSCETV AppShareTweetEmailView the discussion thread.