Each flower is about ¾–1" across, consisting of 5 petal-like sepals, 4 petals, 3 inner pistils, and stamens. The sepals spread outward from the center of the flower and they are usually some shade of purple or blue-violet; far less often, they are white. The upper sepal forms a long nectar spur behind the rest of the flower; this spur angles upward and it is fairly straight.