Iva xanthifolia

英 美
  • 假苍耳
  • IVA abbr.理想电压放大器(=IdealVoltageAmplifier)abbr.检查用观察器具(=InspectionVisualAid)
Noun:
  1. tall annual marsh elder common in moist rich soil in central North America that can cause contact dermatitis; produces much pollen that is a major cause of hay fever