1. Small free-floating aquatic fern from the eastern United States to tropical America; naturalized in western and southern Europe
   - floating fern, Carolina pond fern, Azolla caroliniana

Derived forms: mosquito ferns

Type of: aquatic fern, water fern

Part of: Azolla, genus Azolla

Encyclopedia: Mosquito fern

• glamourous
• glance
• glance over
• glancingly
• rum cherry
• rum cocktail
• rum nose
• rum sling
• rum-blossom
• Rumania
• Rumanian
• Rumansh
• rumba
• rumble
• rumble seat
• rumbling
• rumbustious
• rumen
• Rumex
• Rumex acetosa
• Rumex acetosella
• Rumex obtusifolius
• Rumex scutatus
• ruminant
• Ruminantia