Rhynchospora macrostachya Torrey ex A.Gray29 of 50
September 8, Myles Standish State Forest, Plymouth
big-headed hornsedge, tall beaksedge
"Horned Rush Pond" annex (entirely dry in 2012). Big-headed horned rush, Rhynchospora macrostachya is even more copious here than on the major pond, the bright green color produced largely by this plant.