1) Fern 2) Matteuccia struthiopteris 3) Onoclea struthiopteris 4) Ostrich fern 5) Pteretis struthiopteris 6) Shuttlecock fern 1) Fern 
a billethead having a form similar to the volute carved at the upper end of a violin. · the young, coiled frond of various species of ferns, eaten as a vegetable.