Keys available at Flora of Pakistan and Flora of China
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Rheum australe D. Don (Keys between Rheum australe (Flowers purple red, Inflorescence fastigiately branched, 0.3-1 m erect leafy panicle) and Rheum webbianum (Flowers pale yellowish, Inflorescence diffusely branched, mostly axillary, less commonly terminal) at Flora of Pakistan and Flora of China)

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Rheum moorcroftianum Royle (W. & Central Tibet and Nepal: Nepal, Tibet, West Himalaya as per POWO)


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Rheum nobile Hook. f. & Thomson (Afghanistan to S. Tibet and N. Myanmar: Afghanistan, East Himalaya, Myanmar, Nepal, Pakistan, Tibet as per POWO)


Rheum webbianum Royle (Keys between Rheum australe (Flowers purple red, Inflorescence fastigiately branched, 0.3-1 m erect leafy panicle) and Rheum webbianum (Flowers pale yellowish, Inflorescence diffusely branched, mostly axillary, less commonly terminal)) at Flora of Pakistan and Flora of China)
(Pakistan to SW. Tibet and W. Nepal: Nepal, Pakistan, Tibet, West Himalaya as per POWO)
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From Floral Database of Tamilnadu :

Binomial Habit Notes Ref. Distrib.
Rheum rhaponticum L. Herb Western Ghats,
Cultivated, Native of  Eurasia
Matthew, 1999 Dindigul

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Botanical name Synonyms Family Common name
Rheum acuminatum Rheum orientalixizangense Polygonaceae Ornamental Rhubarb
Rheum australe Rheum emodi Polygonaceae Himalayan Rhubarb
Rheum nobile Polygonaceae Sikkim Rhubarb
Rheum spiciforme Polygonaceae Spiked Rhubarb
Rheum webbianum Polygonaceae Indian Rhubarb

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Herbs Cultivation and Medicinal Uses By H. Panda – Details-

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Forest Plants of Eastern India By Amal Bhusan Chaudhuri (1993)- Details-
Rheum : 1 post by 1 author.

I have updated eFI (efloraofindia) page on Rheum

Attempts have been made to incorporate most of the species available in India & nearby areas with details & keys directly or through links as far as possible. It’s quite possible that there may be some discrepancy in the accepted names & synonyms taken from other links.

Species discussed so far in efloraofindia are given at the bottom of the page in the form of links against Subpages. On clicking them one can see all the details.

If someone can provide complete list of Indian species with source references it will be wonderful.

Any comments/ corrections are welcome.


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Rheum (Polygonaceae) page with comparative images:
Pl. go through Rheum (Polygonaceae) page with comparative images of species in efloraofindia. On clicking the link of species, one can check the complete details. Genus pages generally give details of most of the species found in India.
I request you to pl. go through & point out mistakes, if any. I hope this will aid in identification in future. If anybody can send images of other species of this genus (for incorporation in the website), if any, or can identify unidentified images, it will be really nice.
Credit goes to Ritesh ji, for identifying most of the Rheum and Polygonaceae posts


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