Chinese Rhubarb
Chinese rhubarb can mean either of two species of rhubarb, genus ''Rheum'': *'' Rheum palmatum'' Linnaeus 1759, also known as Turkey rhubarb, East Indian rhubarb, or palmate rhubarb *''Rheum officinale ''Rheum officinale'', the Chinese rhubarb, or Indian rhubarb is a rhubarb from the family Polygonaceae native to China. In Chinese it is called ''yào yòng dà huáng'' (), literally meaning ''medicinal rhubarb''. Description A perennial typic ...

Rhubarb
Rhubarb is the fleshy, edible stalks ( petioles) of species and hybrids (culinary rhubarb) of ''Rheum'' in the family Polygonaceae, which are cooked and used for food. The whole plant – a herbaceous perennial growing from short, thick rhizomes – is also called rhubarb. Historically, different plants have been called "rhubarb" in English. The large, triangular leaves contain high levels of oxalic acid and anthrone glycosides, making them inedible. The small flowers are grouped in large compound leafy greenish-white to rose-red inflorescences. The precise origin of culinary rhubarb is unknown. The species ''Rheum rhabarbarum'' (syn. ''R. undulatum'') and '' R. rhaponticum'' were grown in Europe before the 18th century and used for medicinal purposes. By the early 18th century, these two species and a possible hybrid of unknown origin, ''R.'' × ''hybridum'', were grown as vegetable crops in England and Scandinavia. They readily hybridize, and culinary rh ...
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Rheum Palmatum
''Rheum palmatum'' is a species of flowering plant in the knotweed family Polygonaceae. It is commonly called Chinese rhubarb, ornamental rhubarb, Turkey rhubarb or East Indian rhubarb. ''Rheum palmatum'' is a herbaceous perennial related to the edible rhubarb. It is primarily used in traditional medicine, and as an ornamental subject in the garden. Taxonomy Agnia Losina-Losinskaja proposed classifying it in the section ''Palmata'' in the ''Flora SSSR'' in 1936. In the 1998 ''Flora Republicae popularis Sinicae'' A. R. Li maintains this classification for this species. Description Its lobed leaves are large, jagged and hand-shaped, growing in width to two feet. Chinese rhubarb has thick, deep roots. Similar species The species ''Rheum tanguticum'' is closely related to ''R. palmatum''. ''R. palmatum'' can be distinguished from ''R.'' × ''hybridum'', the garden rhubarb we eat, by size; while garden rhubarb only grows to a few feet in height, Chinese rhubarb can grow to ...
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