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fiddlehead, ostrich fern, shuttlecock fern, Matteuccia struthiopteris, Pteretis struthiopteris, Onoclea struthiopteris | tall fern of northern temperate regions having graceful arched fronds and sporophylls resembling ostrich plumes ❲Onoclea struthiopteris, Matteuccia struthiopteris, Pteretis struthiopteris❳ |