Hop Sedge (Carex lupulina) lush growth in water tupelo (Nyssa aquatica) stand. Fruiting bodies are present on the sedges. Sedge fruting bodies are often referred to as nutlets. Congaree National Park, SC, spring. Water Tupelo (Nyssa aquatica) with lush growth of Hop Sedge (Carex lupulina) This is a stand of Water Tupelo with the occasional Bald Cypress (Taxodium distichum). Knees visible in the photo could either be from Water Tupelo or Bald Cypress as both species form knees.