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Rheum ribes - L.

Common Name
Family Polygonaceae
USDA hardiness 5-9
Known Hazards Although no specific mention has been seen for this species, the leaves of some if not all members of this genus contain significant quantities of oxalic acid and should not be eaten in any quantity. Oxalic acid can lock up certain minerals in the body, especially calcium, leading to nutritional deficiency. The content of oxalic acid will be reduced if the plant is cooked. People with a tendency to rheumatism, arthritis, gout, kidney stones or hyperacidity should take especial caution if including this plant in their diet since it can aggravate their condition[238].
Habitats Dry gorges among rocks, 2300 - 2700 metres[93, 187].
Range W. Asia - Turkey to Iran.
Edibility Rating  
Other Uses  
Weed Potential No
Medicinal Rating  
Care
Fully Hardy Well drained soil Moist Soil Semi-shade Full sun
Rheum ribes


Rheum ribes

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Summary


Physical Characteristics

 icon of manicon of flower
Rheum ribes is a PERENNIAL growing to 1.5 m (5ft).
It is hardy to zone (UK) 6. It is in flower from Jun to July, and the seeds ripen from Jul to August. The species is hermaphrodite (has both male and female organs) and are pollinated by Wind.Suitable for: medium (loamy) and heavy (clay) soils, prefers well-drained soil and can grow in heavy clay soil. Suitable pH: acid, neutral and basic (alkaline) soils. It can grow in semi-shade (light woodland) or no shade. It prefers dry or moist soil.

Synonyms

Habitats

Cultivated Beds.

Dry gorges among rocks, 2300 - 2700 metres[93, 187].

Edible Uses

Edible Parts: Stem.
Edible Uses:

Leaf stem - cooked[2, 93, 105]. Eaten raw by the local people[187].

Medicinal Uses

Plants For A Future can not take any responsibility for any adverse effects from the use of plants. Always seek advice from a professional before using a plant medicinally.



None known

Other Uses

None known

Cultivation details

Prefers a deep, fertile, moderately heavy, humus rich, moisture retentive, well-drained soil in sun or semi-shade[200]. Grows well in heavy clay soils. Best grown in a dry position, where it can be very long-lived[187]. Hardy to about -20°c according to one report[200] whilst another says that plants are somewhat tender in Britain[1]. Plants in this genus seem to be immune to the predations of rabbits[233]. Hybridizes freely with other members of this genus[200].

Propagation

Seed - best sown in autumn in a shaded cold frame[200]. The seed can also be sown in spring in a cold frame. When large enough to handle, prick the seedlings out into individual pots and grow them on in the greenhouse or cold frame for their first winter, planting them out in the spring. Division in early spring or autumn[1, 111]. Divide up the rootstock with a sharp spade or knife, making sure that there is at least one growth bud on each division. Larger divisions can be planted out direct into their permanent positions. We have found that it is better to pot up the smaller divisions and grow them on in light shade in a cold frame until they are well established before planting them out in late spring or early summer.

Other Names

If available other names are mentioned here

Found In

Countries where the plant has been found are listed here if the information is available

Weed Potential

Right plant wrong place. We are currently updating this section. Please note that a plant may be invasive in one area but may not in your area so it’s worth checking.

Conservation Status

IUCN Red List of Threatened Plants Status :

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Rheum compactum 20
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Rheum nobileSikkim Rhubarb32
Rheum officinaleChinese Rhubarb13
Rheum palmatumTurkey Rhubarb, Chinese Rhubarb - Da Huang, Chinese rhubarb35
Rheum palmatum tanguticumDa Huang35
Rheum rhaponticumRhubarb, Garden rhubarb23
Rheum spiciforme 21
Rheum tataricumTartarian Rhubarb20
Rheum x cultorumRhubarb43

 

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Author

L.

Botanical References

93200

Links / References

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Readers comment

Andreas Emmerling-Skala, Germany   Fri Aug 29 16:04:54 2003

important for the history of Rheum ribes: Laufer, Berthold: Sino-Iranica. Chinese contributions to the history of civilization in ancient Iran with special reference to the History of Cultivated Plants and Products (= Field Museum of Natural History, Publ 201) (= Anthropol. Ser 15,3) Chicago 1919 [Taipeh 1978] p. 547f

Ann Seigies   Sun Mar 16 2008

www.efloras.org Flora of Pakistan Provides additional taxonomical details

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Subject : Rheum ribes  
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