The buttonhole flower is one of the lesser known origami flowers. If you have successfully done origami before, this could be a fun, new challenge. If you have never done origami before, do not be discouraged! Take your time, read carefully, and look at the pictures provided for guidance.
Align one of the shorter edges of the paper with the longer edge. Fold the diagonal that forms. Trim off the excess strip of paper. Refer to the pictures for clarification.