Anemone nemorosa is an early-spring flowering plant in the Genus Anemone.
Common names include wood anemone, windflower, European thimbleweed and smell fox. It is a perennial herbaceous plant, growing in early spring to 5-15 cm tall, and dying back down to the root-like rhizomes by mid summer. The rhizomes, that spread just below the earth surface, grow quickly, contributing to its rapid spread in woodland conditions, where it can carpet large areas.
The flower is 2 cm diameter, with six or seven petal-like segments (actually tepals). In the wild the flowers are usually white, but may be pinkish, lilac or blue, and often have a darker tint to the back of the 'petals'. It does not have a scent, and little nectar, since it does not rely very much on pollination by insects for reproduction.
The plant is poisonous to humans, but has been used as a medicine.
See also the blue ones (Anemone blanda).