Dreamlilies are a type of flower. They are said to be teal in color with ominous, pointed petals. The flowers' pollen is extremely sedative, just touching the pollen is enough to sedate a fully grown elf. In the Sanctuary, they are woven into a lei when used to sedate animals. They were hybridized with other sleep-inducing plants (Aethrial, and Sweetshades) by Calla to create the Reveriebells.
In Everblaze, Dreamlilies were used to sedate Greyfell while he relived painful memories. They were also found at the site of the Everblaze in Nightfall, when Sophie, Livvy, Grady, Fitz, Biana, and Tam were going to collect ashes from the Everblaze.