Rheum palmatum

Rheum palmatum, also known as Chinese rhubarb, Turkey rhubarb, Indian rhubarb, Russian rhubarb, or simply rhubarb, is a plant species with a long history of medicinal use. It belongs to the family Polygonaceae and is native to the mountainous regions of western and northwestern China, as well as the Tibetan Plateau.

Description

Rheum palmatum is a robust herbaceous perennial growing to 2-3 m tall. It has large, triangular leaves, 40-60 cm long, with a pronounced red coloration. The flowers are small, greenish-white, and arranged in large compound leafy inflorescences.

Uses

The root of Rheum palmatum has been used in traditional Chinese medicine for over two thousand years. It is considered a "cooling" herb and is used to reduce heat in the body, especially in the digestive system. It is also used to treat constipation, diarrhea, jaundice, and skin eruptions.

Cultivation

Rheum palmatum prefers a sunny position and a well-drained soil. It is hardy to zone 5 and is not frost tender. It is propagated by seed in the spring or by division in early spring or autumn.

Toxicity

While the root of Rheum palmatum is used medicinally, it can be toxic in large doses. Symptoms of toxicity can include abdominal pain, vomiting, and diarrhea. Long-term use can lead to electrolyte imbalance and potassium loss.

See also

• List of plants used in herbalism
• List of Chinese herbs

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