Does anyone know what this is? Sorry for the poor photos. I forgot to mention the plant was photographed in June.
Triglochin maritima or Triglochin palustris - if you zoom into your original photo, you may see some details distinguishing these two species (very few and tiny): http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=222000441 http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=222000442
