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Jeffersonia dubia - (Maxim.)Benth.&Hook.

Common Name Twinleaf
Family Berberidaceae
USDA hardiness 4-8
Known Hazards None known
Habitats Forests[200].
Range E. Asia - N. China to Siberia.
Edibility Rating    (0 of 5)
Other Uses    (0 of 5)
Weed Potential No
Medicinal Rating    (2 of 5)
Care (info)
Fully Hardy Moist Soil Full shade Semi-shade
Jeffersonia dubia Twinleaf


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Jeffersonia dubia Twinleaf
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Summary

Update 9 May 2022: Jeffersonia dubia (Maxim.) Benth. & Hook. f. ex Baker & Moore is a synonym of Plagiorhegma dubium Maxim.


Physical Characteristics

 icon of manicon of flower
Jeffersonia dubia is a PERENNIAL growing to 0.3 m (1ft) by 0.2 m (0ft 8in) at a slow rate.
See above for USDA hardiness. It is hardy to UK zone 5. It is in flower from May to June. The species is hermaphrodite (has both male and female organs).
Suitable for: light (sandy) and medium (loamy) soils and prefers well-drained soil. Suitable pH: mildly acid, neutral and basic (mildly alkaline) soils. It can grow in full shade (deep woodland) or semi-shade (light woodland). It prefers moist soil.

UK Hardiness Map US Hardiness Map

Synonyms

Plagiorhegma dubium Maxim.

Plant Habitats

Woodland Garden Dappled Shade; Shady Edge; not Deep Shade;

Edible Uses

None known

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.
Cancer  Febrifuge  Stomachic

The root is febrifuge and stomachic[218]. It also contains the anti-tumour compound berberine[218].

References   More on Medicinal Uses

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Other Uses

A woodland rock garden plant from Korea long been cultivated in Japan.

Special Uses

References   More on Other Uses

Cultivation details

Prefers a light sandy, peaty or humus-rich woodland soil and a rather shady situation[1, 130, 280]. Suitable for a choice position in a cool leafy soil[187]. This species is hardy to at least -20°c[187]. Plants have an extensive root system and resent disturbance[188]. They should be pot-grown and planted into their permanent positions as soon as possible They should be pot-grown and planted into their permanent positions as soon as possible

References   Carbon Farming Information and Carbon Sequestration Information

Temperature Converter

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The PFAF Bookshop

Plants For A Future have a number of books available in paperback and digital form. Book titles include Edible Plants, Edible Perennials, Edible Trees,Edible Shrubs, Woodland Gardening, and Temperate Food Forest Plants. Our new book is Food Forest Plants For Hotter Conditions (Tropical and Sub-Tropical).

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Plant Propagation

Seed - best sown as soon as it is ripe in a cold frame[200]. Sow stored seed as soon as possible in late winter or the spring. When they are large enough to handle, prick the seedlings out into individual pots and grow them on in the greenhouse for at least their first winter. Plant them out into their permanent positions in late spring or early summer, after the last expected frosts. Division in early spring[200].

Other Names

If available other names are mentioned here

Asian Twinleaf

Native Range

TEMPERATE ASIA: Russian Federation (Primorye), China (Jilin Sheng), Korea

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 

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

(Maxim.)Benth.&Hook.

Botanical References

200280

Links / References

For a list of references used on this page please go here

Readers comment

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