Peony / Paeonia suffruticosa / 牡丹(ぼたん)

TANAKA Juuyoh (田中十洋) has added a photo to the pool:

Kannon-ji(temple), Kashiwa-shi(city) Chiba-ken(Prefecture), Japan

千葉県柏市(ちばけん かしわし) 観音寺(かんのんじ)