Within the Gentianaceae, taxa within the genus Gentianopsis are collectively known as the fringed gentians.    From Wordnik.com.  [Museum Blogs] Reference

Gentianopsis detonsa is known commonly as the windmill fringed gentian (a phenomenon better seen here: fringed gentian at Yellowstone National Park).    From Wordnik.com.  [Museum Blogs] Reference

Gentianopsis detonsa (Rottb.).    From Wordnik.com.  [Museum Blogs] Reference

Gentianopsis detonsa, i.e.    From Wordnik.com.  [Museum Blogs] Reference