Note 6 — Chapter XVII · SANKASYA. BUDDHA’S ASCENT TO AND DESCENT FROM THE TRAYASTRIMSAS HEAVEN, AND OTHER LEGENDS.
James Legge translation
(6) Eitel gives the name Utpala with the same Chinese phonetisation as in the text, but not as the name of any bhikshuni. The Sanskrit word, however, is explained by “blue lotus flowers;” and Hsuan-chwang calls her the nun “Lotus-flower colour ({.} {.} {.});”—the same as Hardy’s Upulwan and Uppalawarna.