Her name was derived from the episodes in 'Hahakigi' (The Broom Tree) and 'Asagao' in which Genji sent her a waka poem with a morning glory, then she was called 'Princess Asagao,' 'Asagao no Saiin,' ('Asagao' was written in Japanese with the letter '朝顔' or '槿'), and so on.
名前は、源氏からアサガオの花を添えた和歌を贈られたという「帚木」や「朝顔」の逸話からきており、そこから「朝顔の姫君」「朝顔の斎院」「槿姫君」「槿斎院」などの呼び名がある。