1. Mat-forming perennial found in cold springs of the eastern United States
   - American watercress, mountain watercress

Type of: watercress

• in-basket
• in-between
• in-bounds
• in-chief
• in-depth
• in-fighting
• in-house
• in-joke
• in-law
• in-line skate
• in-migration
• in-person
• in-service
• in-situ
• in-tray
• in-your-face
• inability
• inaccessibility
• inaccessible
• inaccessibly
• inaccuracy
• inaccurate
• inaccurately
• Inachis
• Inachis io