1. Submersed plant with whorled lanceolate leaves and solitary axillary flowers; Old World plant naturalized in southern United States and clogging Florida's waterways
   - Hydrilla verticillata

Derived forms: hydrillas

Type of: aquatic plant, hydrophyte, hydrophytic plant, water plant

Part of: genus Hydrilla

Encyclopedia: Hydrilla

• Appalachians
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• appallingly
• Appaloosa
• appanage
• apparatchik
• apparatus
• apparatus urogenitalis
• apparel
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• apparel industry
• appareled
• apparelled
• apparency
• apparent
• apparent horizon
• apparent motion
• apparent movement
• apparently
• apparentness
• apparition
• apparitional
• appeal