Okunosenbon

...At the entrance to Mt. Omine, there is Kinpusenji Temple (Zao-do), the head temple of Kinpusan Shugen Honshu, and there are many historical sites and traditional sites related to Minamoto no Yoshitsune and the Southern Court. The cherry blossoms, which are said to have been sacred trees of Zao Gongen by En no Gyoja, are famous for filling a mountain with trees donated by pilgrims and others, including Shimo Senbon near Yoshino Shrine, Naka Senbon near Nyoirin-ji Temple, Kami Senbon near Yoshino Mikumari Shrine, and Oku Senbon near Saigyo-an. They are also a popular subject of poetry, and poems about Yoshino's cherry blossoms begin in the Kokinshu, but until the mid-Heian period, they were more often associated with mountain worship and were written about as snowy mountains. ...

*Some of the terminology that refers to "Okusenbon" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…大峰山の入口で，金峰山修験本宗の総本山金峯山寺(蔵王堂)があり，また源義経や南朝ゆかりの史跡や伝承地に富む。役行者（えんのぎようじや）によって蔵王権現の神木とされたという桜は，参詣者などの献木により一山を埋め，吉野神宮付近の下千本，如意輪寺付近の中千本，吉野水分（みくまり）神社付近の上千本，西行庵付近の奥千本として有名。歌枕でもあり，吉野の桜を詠む歌は《古今集》に始まるが，平安中期まではむしろ山岳信仰と結びついて雪の山として詠まれることが多かった。…

※「奥千本」について言及している用語解説の一部を掲載しています。

出典｜株式会社平凡社世界大百科事典 第２版について | 情報