It is the sweet flag iris which does not become to show midmost. A small flower is pocket paper. The leaf which grew straight is okurareruka. Green niashirareteirunoga Enkianthus perulatus azalea. By the way, a sweet flag and the iris hang it as a talisman against evil in another thing, and it seems to be a friend of the taro department in the sweet flag that there is a custom to bathe. Furthermore, the iris seems to belong to Iridaceae. When write both the sweet flag and the iris in a kanji; “iris” ninarusodesukarayayakkoshiidesune.