Sophora tonkinensis

a perennial member of the Sophora genus in the family Leguminosae.

No photo available

Taxonomy and growth

Genus
Sophora
Life cycle
perennial
Flower type
hermaphrodite

Uses

Toxicity

Toxicity warning. The historical record reports a hazard for this plant. Do not use it to decide which parts are safe to eat or use medicinally.

This section contains historical Plants For A Future notes marked noncommercial.

The plant contains cytosine, which resembles nicotine and is similarly toxic[6].

Medicinal uses

Historical medicinal uses. These records describe reported uses. They do not establish safety or effectiveness. Ask a qualified health professional before using any plant medicinally.

This section contains historical Plants For A Future notes marked noncommercial.

The root is analgesic, anticancer, anti-inflammatory, antipyretic, antispasmodic, diuretic and hypotensive[2]. A decoction of the dried roots is used in the treatment of a variety of ailments including cancer of the respiratory tract and urinary bladder, boils, constipation, coughs and sore throats[2][4]. The plant contains a number of compounds that demonstrate anticancer activity[2][4].

Product or use
Analgesic
Product or use
Antiinflammatory
Product or use
Antipyretic
Product or use
Antispasmodic
Product or use
Cancer
Product or use
Diuretic
Product or use
Hypotensive

Ecology and functions

Nitrogen fixer

Environment

Range
E. Asia - China.
Habitat
Not known
Light
full sun
Shade tolerance
light shade
Water
moderate
Soil textures
sandy, loamy, clay
Soil pH
acid, neutral, alkaline
Tolerates Nutritionally Poor Soil
No
Drought
intolerant

Propagation

This section contains historical Plants For A Future notes marked noncommercial.

Seed - best sown as soon as it is ripe in a greenhouse[3]. Pre-soak stored seed for 12 hours in hot (not boiling) water and sow in late winter in a greenhouse[7]. Prick out the seedlings as soon as they are large enough to handle into individual pots in the greenhouse, and grow them on for 2 years under protected conditions. Plant them out into their permanent positions in early summer of their third year. Cuttings of young shoots with a heel, July/August in a frame[1]. Air-layering[3].

Cultivation

This section contains historical Plants For A Future notes marked noncommercial.

We have very little information on this species and do not know if it will be hardy in Britain. The following notes are based on the general needs of the genus. Succeeds in a well-drained moderately fertile soil in full sun[3]. It grows best in the warmer areas of the country where the wood will be more readily ripened and better able to withstand winter cold[5]. Plants should be container-grown and planted out whilst young, older plants do not transplant well[5]. This species has a symbiotic relationship with certain soil bacteria, these bacteria form nodules on the roots and fix atmospheric nitrogen. Some of this nitrogen is utilized by the growing plant but some can also be used by other plants growing nearby[3].

References

  1. Bean. W. Trees and Shrubs Hardy in Great Britain. Vol 1 - 4 and Supplement. Murray 1981-00-00

  2. Yeung. Him-Che. Handbook of Chinese Herbs and Formulas. Institute of Chinese Medicine, Los Angeles 1985-00-00

  3. Huxley. A. The New RHS Dictionary of Gardening. 1992. MacMillan Press 1992-00-00 ISBN 0-333-47494-5

  4. Duke. J. A. and Ayensu. E. S. Medicinal Plants of China Reference Publications, Inc. 1985-00-00 ISBN 0-917256-20-4

  5. Grey-Wilson. C. & Matthews. V. Gardening on Walls Collins 1983-00-00 ISBN 0-00-219220-0

  6. Bown. D. Encyclopaedia of Herbs and their Uses. Dorling Kindersley, London. 1995-00-00 ISBN 0-7513-020-31

  7. Sheat. W. G. Propagation of Trees, Shrubs and Conifers. MacMillan and Co 1948-00-00

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