16 years ago I took a leaf cutting from a plant and for the first time it flowered! The leaves grow up to a foot long are leathery and have wavy edges. The flower looks like no other I have seen. It is an elongated shape and the many, many "petals" look like silk feathers and are creamy white with a few strands of pink/salmon. The flower grows directly out of the tip or side of the leaf suspended from what seems like an umbilical cord. Any ideas what this might be???