Vesperlace

Vesperlace is a plant mentioned in Flashback that is showcased by Flori in her endeavor to create a song that would rid Sophie and Fitz's echoes. In daytime it appears as a wispy vine with leaves of a darker shade that has small clusters of pearl white buds. It is said to only bloom at night, though its night-form was not shown. It only is able to grow in the darkest points of the most silent forests. According to Flori, its melody is the rhythm of darkness, that is the same pulse of that of the echoes.