Athyrium niponicum, the Japanese painted fern, is a species of fern native to eastern Asia. This species was redefined as a member of genus Anisocampium in 2011 based on phylogenetic analyses., but the genus has since been sunk into Athyrium. This is a commonly cultivated fern, especially A. niponicum var. pictum. It thrives in many kinds of shady garden conditions and produces thick colonies of gray-green fronds with reddish midribs. 'Pictum' is also considered to be a cultivar; varieties and cultivars are bred to achieve midribs in many shades of red.