Deep purple

Gentianopsis thermalis, July 15, 2025

Common & scientific name

Rocky Mountain fringed gentian, Gentianopsis thermalis

Family

Gentian, Gentianaceae

Location

Linkins Lake, 12,000’

Fun, weird, helpful, or little known fact

This delightful, widespread gentian (think roadside ditches, among other wet places) has four spiraling, delicately-fringed, deep-blue or deep-purple petals (compare the photos at left). “Thermalis” refers to the thermal pools of Yellowstone, where this gentian is particularly abundant and has been designated the park’s official flower.