They really should.
On one of the last posts, I described the Snakebark Maple. There's another North American Native that has been overlooked; Indian Cherry. It has lush foliage through the dog days of summer. It is laced with ornamental fruit when most other plants are tired and uninteresting. It deserves more credit than it gets.
Korean Mountain Ash is another virtual unknown. Most species of Mountain Ash are demanding customers but the Korean is an exception. The clean flowers contrast the dark foliage beautifully.