It is called the Hige mandala (beard mandala) from its characteristic of expressing these in Kanji and Sanskrit as well as the long lines drawn from the chant, which is located in the center.
これらを漢字や梵字で書き表し、中央の題目から長く延びた線を引く特徴から、髭曼荼羅とも呼ばれている。