Red columbine strikes a great pose for a floral portrait, with its drooping tubular flowers and dangling stamens. At the base of each petal is a projecting spur that contains the flower's nectar. This works well for hummingbirds, a primary columbine pollinator. With their long, coiled tongues, the diminutive birds can reach the bottom of the spurs and sip their nectar reward. This is a great example of form and function working in harmony.