WHAT FLORIDA NATIVE PLANT IS BLOOMING TODAY?: BULLTONGUE ARROWHEAD (Sagittaria lancifolia)
this emergent plant is called Duck potato by some, but this species doesn’t have the beefy potatoe-y corms of some other Sagittaria spp. The stalk ends are said to be edible (source: http://www.eattheweeds.com/wapato-all-its-quacked-up-to-be/)
Birds/Mammals eat the fruit, attracts pollinators.
Native American Ethnobotany for this genus: http://naeb.brit.org/uses/search/?string=Sagittaria+lancifolia
Where does it grow in Florida? http://www.florida.plantatlas.usf.edu/Plant.aspx?id=2817