=longissima 'Asahi Comet'.
Deep emerald green with 0.125 in white margin on most leaves with white projecting into green on some leaves; glossy.
This is the most beautiful variegated form of the "mizu giboshi" or water hosta, referring to its habit of growing on rocks in and around springs and streams. This Japanese selection has narrow leaves, very glossy, with a broad cream border.
Difficult in a garden, needs moisture.