1. Erect perennial with stout stems and yellow-green flowers; southern Canada and southeastern United States
   - yellow giant hyssop

Type of: giant hyssop

• inflexibleness
• inflexibly
• inflexion
• inflict
• infliction
• inflictive
• infliximab
• inflorescence
• inflow
• inflowing
• influence
• influence peddler
• influent
• influential
• influential person
• influentially
• influenza
• influx
• info
• infold
• infolding
• infomercial
• inform
• informal
• informality