A flower in Middle-earth about which Tolkien said “like stars bloomed the white flowers of uilos, the Evermind” (UT/49). Elsewhere Evermind was the translation of the Rohirric flower name simbelmynë (LotR/507), so uilos may be its Elvish name but with a different meaning. This word also appears in Amon Uilos, the Sindarin name of Oiolossë “Ever (Snow) White” (S/37). Thus uilos seems to be a combination of ui “ever” and either loss “snow” or gloss “white”.