(n)beautiful spreading fern of eastern North America and eastern Asia naturalized in western Europe; pinnately divided fronds show a slight tendency to fold when touched; pinnules enclose groups of sori in beadlike lobes, Syn.bead fern, Onoclea sensibilis
The Collaborative International Dictionary of English (GCIDE) v.0.53Collaborative International Dictionary (GCIDE)
prop. n. A genus consisting of only species: the sensitive fern; in some classifications it is included in the Polypodiaceae. Syn. -- genus Onoclea. [ WordNet 1.5 ]