Anemone hupehensis, commonly called Japanese anemone, is a fibrous-rooted, woody-based late summer to fall flowering herbaceous perennial of the buttercup family. Although native to central and southwestern China, this anemone was cultivated in Japan for many years over which time it escaped gardens and naturalized to the point where it became mistakenly considered to be a Japanese native.. This plant typically forms a basal foliage clump to 12” tall of 3-parted, dark green leaves on long petioles.. Long, upright, wiry-but-graceful, branching flower stems rise well above the foliage clump in late summer bearing single, cup-shaped, apetalous flowers (2-3” diameter). Each flower contains 5-7 showy, rounded, pinkish-white to pale rose-mauve tepals (modified petals) with a contrasting green button-like center surrounded by a ring of yellow stamens. Flowers bloom late summer into fall often extending to first frost. Genus name is often said to be derived from the Greek word anemos meaning wind. Windflower is a common name for plants in the genus Anemone because upright flower stems typically sway in the breeze.