Jeffersonia dubia Twinleaf PFAF Plant Database

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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

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

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

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

Celsius Fahrenheit:

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 :

IUCN Red List

Related Plants

Latin Name	Common Name	Habit	Height	Hardiness	Growth	Soil	Shade	Moisture	Edible	Medicinal	Other
Jeffersonia diphylla	Twinleaf, Rheumatism Root	Perennial	0.2	5-8	S	LM	FS	M	0	2

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.

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Expert comment

Author

(Maxim.)Benth.&Hook.

Botanical References

200280

Links / References

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

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