Onoclea sensibilis

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

北米東部および東アジア原産で西ヨーロッパに帰化した美しい広がるシダ；羽状複葉は触れるとわずかに閉じる傾向があり、小羽片が数珠状の裂片内に胞子嚢群を包み込む