Not all art is created in Left Bank studios or SoHo lofts. Not all sculpture is chiseled from marble or cast in bronze. Architecture needn’t be live in. Some arises from a hot, humid grassy plot where volunteers directed by Patrick Dougherty bend and trim saplings into shapes resembling teepees, silos, beehives, minarets, tipsy wine bottles, tunnels, animals, even ghostly masks channeling the groupings at Stonehenge and Easter Island. This “environmental art” mounted at 300 locations worldwide is underway at Sandhills Community College Horticultural Gardens. Once completed, the structures should withstand the elements for several years before collapsing into heaps which, on a Scottish moor, might become a bonfire, here more likely thrown into a lake for a fish habitat or carted deep into the woods. Because unlike the pharaohs, Dougherty doesn’t desire permanence. Instead, he translates imagination and perception into tangibility, then moves on, feeling more satisfaction than sadness.