Botanical Name :- Rheum australe D. Don,
Family :- Polygonaceae.
Synonyms :- Rheum emodii Wall. ex Meisn.
Regional Name :- English : Himalayan Rhubard, Indian Rhubard, Hindi : Dolu, Revand chini, Sanskrit : Revandachini, Revatchini, Urdu : Rewand chini, Marathi : Mulkarcvand chini, Revanchini Raevaachini, Telugu: Naatturaeval chini, Bengali : Revandchini, Gujarathi : Revandchini, Kannada : Revalchini, Punjabi : Atsu , Chotial, Chuchi, Pambash, Rewand chini, Tamil : Variyattu, Natturevandchini, Bengali : Revandchini.
Part Used :- Root.
Description :- Revand chini is a stout herb 1.5 – 3.0 m in height, it is globally distributed in the Himalayas range from Kashmir to Sikkim across India, Nepal and Bhutan at altitude of 3,300 m to 5,200 m. Within India, it is also cultivated in Assam, Himachal Pradesh, Uttar Pradesh, Sikkim and Arunachal Pradesh. The stem is hard, green with brownish streaks. Leaves petioled, up to 1 m in radius, ovate or orbiculate, obtuse, base rounded or cordate. Stalk of flower and petiole of leaf red in color, they are sold in the market as Amalved, adulterant or substitute of Garcinia pedunculata, the actual amalved. The flowers are 2-3 foot long and purple to reddish colored. The fruits are about 1-2 cm long, purple colored. Rhizome is tight, robust like brown in color, with thicker bark. In outer part of roots, wrinkled rings are seen and in middle parts of roots round annual rings are seen. Petioles of leaf are lightly yellow in color. It tastes sour.
Phytoconstituents :- It contains emodin, emodin-3-monomethyl ether, chrysophanol, aloe-emodin, rhein. These occur free and as quinone, anthrone or dianthroneglycosides. It is also contains cinnamic and rheinolic acids, volatile oil, starch and calcium oxalate. Two major glycosides active principles, sennoside A and B, are present along with free anthraquinones. It is also contains rhein acids and calcium oxalate.
Ayurvedic Properties :- Rasa : Katu, Tikta, Guna : Laghu, Ruksha, Teekshna, Vipaka : Katu, Virya : Ushna, Karma : Kaphapiyta shamaka.
Ayurvedic Applications :- Kapha-Vata Shamak, Pittvardhak, Depana, Pachana, Anulomana, Bhedan, Shvas har, Hikkahar, Hridyottejak, Mutrala, Virechak, Kasa, Antrasula, Prameha and Pilahayakritroga.
Medicinal Uses :- It is used for the treatment of low digestion, diarrhoea, dysentery, constipation, Dyspepsia, dysmenorrhea, retention of urine, Hepatosis, hepatomegaly, jaundice, Cirrhosis and liver disorders. It is also used for Alcoholism, Anorexia, Bronchitis, Asthma, Coryza, Catarrh, cleaning the teeth and treating gingivitis.
Common Adulterants :- Rheum Webbianum Royle, Rheum Moorcroftianum Royle, Rheum Spiciforma Royle, Rheum Nobile Hook.