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Rheum compactum - 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 Banks of rivers and brooks, valleys and slopes[74]. Slopes at elevations around 2000 metres in Tibet[266].
Range E. Asia - China.
Edibility Rating    (2 of 5)
Other Uses    (0 of 5)
Weed Potential No
Medicinal Rating    (0 of 5)
Care (info)
Fully Hardy Moist Soil Semi-shade Full sun
Rheum compactum


Rheum compactum

 

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Summary


Physical Characteristics

 icon of manicon of flower
Rheum compactum is a PERENNIAL growing to 0.5 m (1ft 8in).
See above for USDA hardiness. It is hardy to UK zone 6. It is in flower from July to August, and the seeds ripen from August to September. The species is hermaphrodite (has both male and female organs) and is pollinated by Wind.
Suitable for: medium (loamy) and heavy (clay) soils, prefers well-drained soil and can grow in heavy clay soil. Suitable pH: mildly acid, neutral and basic (mildly alkaline) soils. It can grow in semi-shade (light woodland) or no shade. It prefers moist soil.

UK Hardiness Map US Hardiness Map

Synonyms

Plant Habitats

 Cultivated Beds;

Edible Uses

Edible Parts: Stem
Edible Uses:

Leaf stem - cooked[2, 74]. A tart flavour, it can be used as a rhubarb substitute[105].

References   More on Edible Uses

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

References   More on Medicinal Uses

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Other Uses

None known

Special Uses

References   More on Other Uses

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. Hardy to about -20°c[200]. Plants in this genus seem to be immune to the predations of rabbits[233]. Hybridizes freely with other members of this genus[200].

References   Carbon Farming Information and Carbon Sequestration Information

Temperature Converter

Type a value in the Celsius field to convert the value to Fahrenheit:

Fahrenheit:

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Plant 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

Native Range

TEMPERATE ASIA: Russian Federation (Buryatia, Tyva, Respublika, Yakutia-Sakha, Krasnoyarsk (south), Chita, Irkutsk), Kazakhstan (east), Mongolia, Russian Federation (Amur, Cukotskij avtonomnyj okrug, Magadanskaja oblast (south)), China (Xinjiang Uygur Zizhiqu (north))

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 :

Related Plants
Latin NameCommon NameHabitHeightHardinessGrowthSoilShadeMoistureEdibleMedicinalOther
Jeffersonia diphyllaTwinleaf, Rheumatism RootPerennial0.2 5-8 SLMFSM02 
Rheum × hybridumGarden RhubarbPerennial1.5 3-8 MLMHSNM431
Rheum australeHimalayan RhubarbPerennial3.0 5-9  MHSNM332
Rheum coreanum Perennial0.0 -  MHSNM01 
Rheum nobileSikkim RhubarbPerennial1.5 6-9  MHSNM321
Rheum officinaleChinese RhubarbPerennial2.0 6-9  MHSNM133
Rheum palmatumTurkey Rhubarb, Chinese Rhubarb - Da Huang, Chinese rhubarbPerennial3.0 6-9  MHSNM352
Rheum palmatum tanguticumDa HuangPerennial2.0 5-9  MHSNM350
Rheum rhaponticumRhubarb, Garden rhubarbPerennial1.2 3-7  MHSNM233
Rheum ribes Perennial1.5 5-9  MHSNDM20 
Rheum spiciforme Perennial0.3 -  MHSNM21 
Rheum tataricumTartarian RhubarbPerennial0.5 -  MHSNDM20 
Rheum x cultorumRhubarbPerennial1.5 3-7  MHSNM432

Growth: S = slow M = medium F = fast. Soil: L = light (sandy) M = medium H = heavy (clay). pH: A = acid N = neutral B = basic (alkaline). Shade: F = full shade S = semi-shade N = no shade. Moisture: D = dry M = Moist We = wet Wa = water.

 

Expert comment

Author

L.

Botanical References

74200266

Links / References

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