Pontederiaceae  (Pickerel-weed Family)

Characteristics:
*six-parted perianth, bilateral, usually blue 
*six (sometimes three) stamens of unequal length
*grows in water

Family: Pontederiaceae

     Genera and Species:

          Genus: Pontederia (pickerel-weed)
                 P. cordata
          Genus: Heteranthera
          Genus: Eichhornia
                 E. crassipes (water-hyacinth)