Practical
Plants

Podocarpium podocarpum japonicum

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

No photo available

Taxonomy and growth

Life cycle
perennial
Height
1.2 m
Fertility
Insects
Flower type
hermaphrodite
Pollinators
Insects

Uses

Edible uses

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

Seed - cooked. Ground into a powder or steamed[1].

Plant part
Seed

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.

A tincture of the plant is a respiratory stimulant[3]. A decoction of the plant is diaphoretic[3].

Product or use
Diaphoretic
Product or use
Stimulant

Ecology and functions

Nitrogen fixer

Environment

Range
E. Asia - China, Japan, Korea, Himalayas.
Habitat
Woods and thickets throughout Japan[5]. Oak groves and shrubby thickets, gravelly soils of mountain slopes[6].
Light
full sun
Shade tolerance
no shade
Water
moderate
Soil textures
sandy, loamy, clay
Soil pH
acid, neutral, alkaline
Drainage
well drained
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. Scarify and pre-soak stored seed for 5 hours in warm water then sow March in a greenhouse. The seed usually germinates within 1 - 4 months at 25°c. Prick out the seedlings into individual pots once they are large enough to handle and grow them on in the greenhouse for their first winter. Plant them out in late spring or early summer and consider giving them some protection from frost in their first winter outdoors. Cuttings of half-ripe wood with a heel, July/August in a frame. Division as the plant comes into growth in the spring. Larger clumps can be replanted direct into their permanent positions, though it is best to pot up smaller clumps and grow them on in a cold frame until they are rooting well. Plant them out in the spring. Root cuttings in winter.

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, though judging by its native range it should succeed outdoors in many parts of this country. The following notes are based on the general needs of the genus. Requires a well-drained soil and a sunny sheltered position[2]. 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[2].

References

  1. Kunkel. G. Plants for Human Consumption. Koeltz Scientific Books 1984-00-00 ISBN 3874292169

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

    ↩1↩2

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

    ↩1↩2

  4. Flora of China 1994-00-00 http://flora.huh.harvard.edu/china/

  5. Ohwi. G. Flora of Japan. (English translation) Smithsonian Institution 1965-00-00

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  6. Komarov. V. L. Flora of the USSR. Israel Program for Scientific Translation 1968-00-00

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