While some are handy with a sword ending a life, others can't end a sentence. However they acquired the name, windflowers are responsive to not only wind, but also other weather related factors in their environment. Many species have relatively long and slender stems with large flowers. The slightest breeze can cause the flower to move. Petals on some species remain closed if rain is eminent, or open late on a heavily clouded day.
Some species dispense their seeds to the wind on cottony puffs similar to dandelions.
There are some 120 species of windflowers. Fortunately for U.S. gardeners, the majority of those species are native to cooler regions of the world. Some confusion exists in literature about exactly what is and is not an anemone. Hepatica was once listed with anemone, but now has status on it's own within Ranunculaceae . Blooms illustrate the relationship to anemone, but the foliage is definitely different, making the split obvious to a gardener.