This is one of Connecticut's largest ferns. Its fiddleheads are food for ruffed grouse, and hummingbirds sometimes use the fuzz on young fronds to line their nests.
- Synonyms: Osmunda cinnamomea
- Family: royal fern (Osmundaceae)
- Habitat: swamps and streambanks
- Height: 2 to 5 feet
- Location of spores: separate fertile fronds are cinnamon-colored, narrow and erect
- Petiole (leaf stalk): round and slightly grooved; at first covered with cinnamon-colored hairs, later smooth and green
- Growth pattern: symmetric clump
- Persistence: deciduous
- Origin: native
Tip of a cinnamon fern frond.