Walking among the boutiques, museums and restaurants along Palm Canyon Drive is a delightful way to spend a day. Most of the art and antique galleries, parks and theaters are in the North and Uptown Design Districts. You will notice these unusual trees throughout downtown. Their scientific name is Washingtonia filifera. The later word refers to the unique cluster of threads hanging below the branches. The California palm can reach a height of 65 feet. This is the only palm native to the United States.