A Flower is a song for voice and closed piano by John Cage.
There is no text; the singer vocalises a small number of phonemes such as "uh", "wah", etc., without vibrato.
Instructions given in the score include, for some passages, "like a pigeon" and "like a wild duck".
The pianist plays by hitting the piano lid in various ways - with his fingers, with his knuckles, etc.
The composition is somewhat similar to the earlier work for voice and closed piano, The Wonderful Widow of Eighteen Springs.