Dennstaedtia punctilobula (Dennstaedtiaceae), Newly Naturalized in Nagano Prefecture, Japan

Abstract

A naturalized population of Dennstaedtia punctilobula (Michx.) T. Moore (Dennstaedtiaceae) is newly found in Tatsuno, Nagano Pref., central Japan in June 2017. The species is widely distributed from Canada to the southeastern part of the United States, and grows in a wide range of environment.