grouped in the large leafy compound inflorescences. Number of varieties has been domesticated as medicinal plant and for the human consumption, while some leaves are toxic; stalks are used in the pies and foods for their typical tart flavor. Genus is also represented by 60 extant species, found in wild, used most commonly in the cooking and is garden rhubarb and so-called false rhubarb.

There are some varieties of the cultivated rhubarb usually grown for eating and are recognized as x hybridum in Royal Horticultural list of plant recognized. Drum rheum is also prepared from rhizomes and the roots of other species, officinal or the rhubarb medicinal. Species of Rheum have also recorded as a larval food plant for Lepidoptera species having brown tail, cabbage moth, buff ermine, a large yellow and nutmeg moth. Rhubarb species are herbaceous with the hermaphrodite flower, consisting of colored perianth, which is composed of 6 to 9 segments; it is arranged in 2 rows.

It is an indigenous plant to Asia; many suggest that Rhubarb was used often by Mongolians. Plant has also grown wild with banks of River Volga for the centuries. Term rhubarb is combination of Greek barbarum and rha while rha is term that mostly refers to both River Volga and plant. Roots of Rhubarb used in the traditional Chinese and also appears in Arabic medieval and the European prescription. Use of the rhubarb stems as food, first recorded in the 17 th century in England after an affordable sugar became available for common people. It can plant successfully in the containers as long as container is placed.