Native to California, Mexico, and Texas.  Desert Willow is a fast growing and attractive ornamental shrub or tree with showy blooms and willow like leaves.  The leaves are opposite, or alternate, linear or linear-lanceolate 2" to 5" long. Medium green in color.  Bark is grayish brown and becomes shaggy and twisted with age.  Often multi-trunked, it can be trained as a single trunk tree.  It has a fast growth rate and is drought tolerant.  Fruit is a long woody capsule containing many flattened, oval, and feathery winged seeds 1/4" long.  Easily reseeds itself in irrigated areas.