1. Found in still or slow-moving fresh or brackish water; useful to oxygenate cool water ponds and aquaria
   - horned pondweed

Type of: pondweed

• genus Streptomyces
• genus Streptopelia
• genus Streptosolen
• genus Strix
• genus Strobilomyces
• genus Strombus
• genus Strongylodon
• genus Strophanthus
• genus Stropharia
• genus Struthio
• genus Struthiomimus
• genus Strymon
• genus Sturnella
• genus Sturnus
• genus Stylomecon
• genus Stylophorum
• genus Styphelia
• genus Styracosaurus
• genus Styrax
• genus Subularia
• genus Suillus
• genus Suksdorfia
• genus Sula
• genus Sundacarpus
• genus Suricata