pteretis struthiopteris(n = noun.plant) fiddlehead, matteuccia struthiopteris, onoclea struthiopteris, ostrich fern, shuttlecock fern - tall fern of northern temperate regions having graceful arched fronds and sporophylls resembling ostrich plumes;
is a kind of fern
is a member of genus matteuccia, genus pteretis, matteuccia, pteretis

genus pteretis, matteuccia struthiopteris, onoclea struthiopteris, pteretis