"Shinano-akigiri" (Salvia koyamae) belongs to the Lamiaceae (the Mint family). It is a perennial herb that is an endemic species, and distributed in the western part of Gunma prefecture and eastern Nagano prefecture of Honshu. This herb grows in the mountain forests and forest edges, and up to a height of 40-50 cm. The leaves are opposite, large circular-cordate and 20 cm in length. Glutinous hair grows on leaves, stems and inflorescences. The pale yellow, papilionacenous flowers bloom in the apical spikes from August to October.