1. Perennial of the eastern United States having early solitary yellow flowers followed by late petalless flowers; so-called because ice crystals form on it during first frosts
   - frostweed, frost-weed, frostwort, Helianthemum canadense

Type of: helianthemum, sun rose, sunrose

• flotilla
• flotsam
• flounce
• flouncy
• flounder
• flour
• flour beetle
• flour bin
• flour corn
• flour mill
• flour weevil
• flourish
• flourishing
• floury
• flout
• flouter
• flow
• flow away
• flow diagram
• flow from
• flow of air
• flow off
• flow out
• flow rate
• flow sheet