Kousa Dogwood Tree.
Stunning in all four seasons, you'll adore the late-blooming Kousa Dogwood (Cornus kousa)! It's a wonderfully showy small flowering tree that blooms weeks later than other Dogwood Trees. The blooms range from pure white to delicate light pink and they last and last!
This Dogwood is native to Japan, China, and Korea, and has been naturalized in Oregon. The true flowers are small round greenish clusters and make up the central sphere of the bloom which is then surrounded... - Kousa Dogwood Tree.