  Pontederia cordata
  
  Eichhornia crassipes
  
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Class Monocotyledoneae, monocots, מחלקה חד-פסיגיים 
  
Family Pontederiaceae, 
 Water Hyacinth family, Pickerelweed family, משפחת פונטדריים 
  
Perennial, rhizomatous, aquatic herbs.
Leaves petiolate, Inflorescence a spike or raceme. Flowers hermaphrodite; perianth-segments 6, petaloid, connate at least at the base. Stamens 3 or 6. Ovary superior; fruit a capsule.
  
Genus Pontederia, פונטדריה:
Genus Eichornia, איכהורניה:
 
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