Jerusalem artichoke, also known as Helianthus tuberosus, is a perennial herb, which originated in North America and later spread to Europe and Asia. Its height is generally 1-3 meters, with massive underground stems and fibrous roots. The stems are erect and covered with white short hairs or bristles. Leaves are usually opposite, the lower leaves are oval or oval, while the upper leaves are alternate; Petiole is longer.

The flowering period of Jerusalem artichoke is from August to September. At this time, it will form a large flower head with multiple layers of total bracts and yellow flowers. The aboveground stems of Jerusalem artichoke can also be processed as feed.