I'll never tire of seeing this delicate beauty on our property, and I'm happy to say that it grows all over in the late spring to early summer! This beautiful flower is found in California, Oregon and Washington. The Clarkia genus includes over 40 species, and all but one are found in North America. (The other is found in South America.) These flowers were named in honor of Captain Clark, who led the Lewis and Clark Expedition from 1803 to 1806 across the Louisiana Purchase to the Pacific Ocean, and claimed the Pacific Northwest for the United States.

For a little more information, Wiki has a short source here: Wiki: Slender Clarkia (Clarkia gracilis)