Wiktionary
cinnamon fern
n. A coarse fern, (taxlink Osmundastrum cinnamomeum species noshow=1), found primarily in wet areas.
WordNet
cinnamon fern
n. New World fern having woolly cinnamon-colored spore-bearing fronds in early spring later surrounded by green fronds; the early uncurling fronds are edible [syn: fiddlehead, fiddlehead fern, Osmunda cinnamonea]