Floating Marsh Pennywort, Limnobium spongia, aka frog bit, is in abundance at the Celery Farm this year. 

   Friend of this blog Deedee Burnside  found it growing here in 2006, and it has been doing particularly well this year.

  According to a state botanist, Limnobium Spongia -- Mr. Spongia to you -- is a very rare native plant in NJ and is being proposed for official state listing as endangered. The species has been restricted to the Delaware Valley.