"I Wandered Lonely as a Cloud" (also commonly known as "Daffodils") is a lyric poem by William Wordsworth. It is one of his most popular, and was inspired by a forest encounter on 15 April 1802 between he, his younger sister Dorothy and a "long belt" of daffodils. Written in 1804, it was first published in 1807 in Poems, in Two Volumes, and as a revision in 1815.