17-letter words containing w, a, l
- yellow water lily — any of several water lilies, as the spatterdock, Nuphar luteum, having yellow flowers.
- yellowstone falls — a waterfall in NW Wyoming, in Yellowstone National Park on the Yellowstone River
- zebra swallowtail — a swallowtail butterfly, Papilio marcellus, having black and greenish-white stripes on the wings.