Halenia deflexa

Halenia deflexa, also known as green gentian or spurred gentian, is a plant in the gentian family (Gentianaceae). This species grows in wetlands and moist forests across much of the northern United States and Canada. Its common names refer to the prominent spurs on its mostly green flowers, a feature common to all species in the genus Halenia. These spurs bear nectar to attract insect pollinators, especially bumblebees, but the flowers are also self-compatible and frequently self-fertilize....read more on Wikipedia.