• Fronds: single, undivided leaf, egg-shaped, 2-4 inches long and up to 1½ inches wide, sheaths stem
• Spores: spike-like fertile frond, emerges from leaf sheath, stalk up to 5½ inches, 2 opposite rows of spore producing structures at tip
• Fruiting season: Early summer
• Height: 4-8 inches
• Habitat: fens, sedge meadows, marshes, grassy shores