guaco /ˈɡwɑːkəʊ/

• 1. 

  N any of several tropical American plants whose leaves are used as an antidote to snakebite, esp the climbers Mikania guaco, family Asteraceae (composites), or Aristolochia maxima (A. serpentina), family Aristolochiaceae 马兜铃属植物; 瓜柯