The gentian family is one of my favorites and Green Gentian (Frasera speciosa), aka Elkweed, Deer’s Ears, or Monument Plant, is one of the more unusual gentians.
Green Gentians grow in dry, open meadows on tall stalks that can reach up to to 8 feet tall. Up to 600 flowers can grow on a single stalk. Like the Old Man of the Mountain mentioned yesterday, Green Gentian is monocarpic, meaning that an individual Green Gentian plant blooms only once in its lifetime and then dies.
The roots of the Green Gentian are edible, but only in moderation.