Phacelia coerulea is a species of phacelia known by the common name skyblue phacelia. It is native to the California and the Southwestern United States and northern Mexico, where it grows in desert and plateau habitat types, such as scrub and woodland.
Skyblue phacelia is native to Utah.
The statement belongs in the category because the excerpt states that the plant is native to the Southwestern United States, but doesn't specifically say that it is native to Utah. The model may have gotten confused because Utah wasn't mentioned directly in the excerpt.