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
   - burweed marsh elder, false ragweed

Type of: iva, marsh elder

• silverleaf nightshade
• silvern
• silverplate
• suspensor
• suspensory
• suspensory bandage
• suspicion
• suspicious
• suspiciously
• suspiciousness
• suspiration
• suspire
• Susquehanna
• Susquehanna River
• suss
• suss out
• Sussex
• Sussex spaniel
• Sussex University
• sustain
• sustainability
• sustainable
• sustained
• sustained yield
• sustainer