キク科オグルマ属の多年草で、学名は Inula ciliaris var. glandulosa。英名はありません。
The "Oze-mizugiku" (Inula ciliaris var. glandulosa) belongs to Asteraceae (the Aster family). It is a perennial herb that is native to Kanto district and Tohoku district of Honshu. This herb grows in marshes and can reach 25-50 cm in height. It is a varity of "Mizu-giku". This common name is derived from the Ozegahara. The yellow flower-heads bloom on the terminal stems from July to September.