We need to raise £10,000 from user donations to get our finances in balance. More >>>

Follow Us:

 

Polygala tenuifolia - Willd.

Common Name Yuan Zhi
Family Polygalaceae
USDA hardiness 5-9
Known Hazards Although no specific mention has been seen for this species, at least one member of this genus is said to be poisonous in large quantities.
Habitats Hillsides, roadsides and meadows[147]. Dry meadows and stony slopes[238].
Range E. Asia - Korea, Mongolia, Manchuria.
Edibility Rating    (1 of 5)
Other Uses    (0 of 5)
Weed Potential No
Medicinal Rating    (3 of 5)
Care
Fully Hardy Moist Soil Semi-shade Full sun
Polygala tenuifolia Yuan Zhi


www.flickr.com/photos/jennyhsu47
Polygala tenuifolia Yuan Zhi

 

Translate this page:

You can translate the content of this page by selecting a language in the select box.

Summary


Physical Characteristics

 icon of manicon of flower
Polygala tenuifolia is a PERENNIAL growing to 0.2 m (0ft 8in) by 0.2 m (0ft 8in).
It is hardy to zone (UK) 6. The species is hermaphrodite (has both male and female organs).
Suitable for: light (sandy), medium (loamy) and heavy (clay) soils and prefers well-drained soil. Suitable pH: acid, neutral and basic (alkaline) soils. It can grow in semi-shade (light woodland) or no shade. It prefers moist soil.

Synonyms

Habitats

 Cultivated Beds;

Edible Uses

Edible Parts: Leaves;  Root.
Edible Uses:

Young leaves - cooked[105, 177, 179]. Root - cooked[105, 177]. The core is removed and the root is boiled in several changes of water[179].

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.

Cardiotonic;  Expectorant;  Haemolytic;  Kidney;  Sedative;  Tonic.

Yuan Zhi contains triterpenoid saponins, these promote the clearing of phlegm from the bronchial tubes. The plant is used mainly as an expectorant and stimulant to treat bronchial asthma, chronic bronchitis and whooping cough[254]. The root is antibacterial, cardiotonic, cerebrotonic, expectorant, haemolytic, hypotensive, sedative and tonic[116, 147, 176, 218]. It acts mainly as a tonic for the heart and kidney energies[238]. It is taken internally in the treatment of coughs with profuse phlegm, bronchitis, insomnia, palpitations, poor memory, anxiety, depression and nervous tension[238]. Externally it is used to treat boils and carbuncles[147, 238]. The root is harvested in the autumn and dried for later use[238]. The leaves are used as a tonic for the kidneys[218].

Other Uses

None known

Cultivation details

Prefers a moderately fertile moisture-retentive well-drained soil, succeeding in full sun if the soil remains moist throughout the growing season, otherwise it is best in semi-shade[200, 238]. Dislikes shade according to another report. Plants are hardy to at least -15°c[238].

image

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, and Woodland Gardening. Our new book to be released soon is Edible Shrubs.

Shop Now

Propagation

Seed - sow spring or autumn in a cold frame[214]. When they are large enough to handle, prick the seedlings out into individual pots and grow them on in the greenhouse for their first winter. Plant them out into their permanent positions in late spring or early summer, after the last expected frosts. Division. Cuttings of young shoots in a frame in late spring[1].

Other Names

If available other names are mentioned here

Found In

Countries where the plant has been found are listed here if the information is available

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

 

Print Friendly and PDF

Expert comment

Author

Willd.

Botanical References

Links / References

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

Readers comment

   Fri Jul 22 11:58:23 2005

Link: Lao Dan

Roger Thomas   Wed Jul 27 09:11:32 2005

During my psychology studies I recently read neuroscience articles providing evidence that extracts from this herb stimulate the brains astrocyte cells to release nerve growth factor, NGF, a chemical that stimulates synapse growth. One clinical study had shown improvements in the symptoms of Parkinson's sufferers. They believe that this herb may be beneficial in the treatment of neurodegenerative disorders.

QR Code

What's this?

This is a QR code (short for Quick Response) which gives fast-track access to our website pages. QR Codes are barcodes that can be read by mobile phone (smartphone) cameras. This QR Code is unique to this page. All plant pages have their own unique code. For more information about QR Codes click here.

1. Copy and print the QR code to a plant label, poster, book, website, magazines, newspaper etc and even t-shirts.

2. Smartphone users scan the QR Code which automatically takes them to the webpage the QR Code came from.

3. Smartphone users quickly have information on a plant directly for the pfaf.org website on their phone.

Add a comment

If you have important information about this plant that may help other users please add a comment or link below. Only comments or links that are felt to be directly relevant to a plant will be included. If you think a comment/link or information contained on this page is inaccurate or misleading we would welcome your feedback at admin@pfaf.org. If you have questions about a plant please use the Forum on this website as we do not have the resources to answer questions ourselves.

* Please note: the comments by website users are not necessarily those held by PFAF and may give misleading or inaccurate information.

To leave a comment please Register or login here All comments need to be approved so will not appear immediately.

Subject : Polygala tenuifolia  
All the information contained in these pages is Copyright (C) Plants For A Future, 1996-2012.
Plants For A Future is a charitable company limited by guarantee, registered in England and Wales. Charity No. 1057719, Company No. 3204567,
Web Design & Management
This work is licensed under a Creative Commons License. Some information cannot be used for commercial reasons or be modified (but some can). Please view the copyright link for more information.