Fagopyrum cymosum
# Fagopyrum cymosum

Fagopyrum cymosum, also known as tall buckwheat, is a domesticated plant used in traditional Chinese medicine, for animal feed, and as an ornamental plant. It is native to much of China, and to Bhutan, Nepal, India, Burma, and Vietnam.

## Chemistry

The flowers are known for their high content of fagopyrin, a naphthodianthrone that provokes phototoxic effects known as fagopyrism.

