Results 3 results found Star gentian (felwort) (Swertia perennis), San Juan National Forest, Colorado, United States of America, North America Star gentian (felwort) (Swertia perennis), San Juan National Forest, Colorado, United States of America, North America Star Gentian (Felwort) (Swertia perennis) with frost, Colorado State Forest State Park, Colorado, United States of America, North America