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Astragalus membranaceus - Moench.

Common Name Huang Qi
Family Fabaceae or Leguminosae
USDA hardiness 5-9
Known Hazards Many members of this genus contain toxic glycosides[65]. All species with edible seedpods can be distinguished by their fleshy round or oval seedpod that looks somewhat like a greengage[85]. A number of species can also accumulate toxic levels of selenium when grown in soils that are relatively rich in that element[65]. Toxic doses may result in neuroligical dysfunction leading to paralysis [301]. Should be used cautiously in immunosuppressed patients [301].
Habitats Dry sandy soils[238]. Mountain thickets[279]. Steppes, meadows, xerophytic shrubs, coniferous forests; montane belt at altitudes of 800 - 2000 metres[266].
Range E. Asia - China, Mongolia and Siberia.
Edibility Rating  
Other Uses  
Weed Potential No
Medicinal Rating  
Care
Fully Hardy Well drained soil Full sun
Astragalus membranaceus Huang Qi


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Astragalus membranaceus Huang Qi

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Summary


Physical Characteristics

 icon of manicon of flower
Astragalus membranaceus is a PERENNIAL growing to 0.3 m (1ft) by 0.3 m (1ft in).
It is hardy to zone (UK) 6. It is in flower from Jun to August, and the seeds ripen from Jul to September. The species is hermaphrodite (has both male and female organs) and are pollinated by Bees, lepidoptera.It can fix Nitrogen.
Suitable for: light (sandy) and medium (loamy) soils and prefers well-drained soil. Suitable pH: neutral and basic (alkaline) soils. It cannot grow in the shade. It prefers dry soil.

Synonyms

Astragalus propinquus

Habitats

 Cultivated Beds;

Edible Uses

None known

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.

Adaptogen;  Antibacterial;  Cancer;  Cardiotonic;  Diuretic;  Febrifuge;  Hypoglycaemic;  Hypotensive;  
Pectoral;  Tonic;  Uterine tonic;  Vasodilator.

Huang Qi is commonly used in Chinese herbalism, where it is considered to be one of the 50 fundamental herbs[218]. The root is a sweet tonic herb that stimulates the immune system and many organs of the body, whilst lowering blood pressure and blood sugar levels[238]. It is particularly suited to young, physically active people, increasing stamina and endurance and improving resistance to the cold - indeed for younger people it is perhaps superior to ginseng in this respect[254]. Huang Qi is used especially for treatment of the kidneys and also to avoid senility[218]. The plant is often used in conjunction with other herbs such as Atractylodes macrocephala and Ledebouriella seseloides[238]. The root contains a number of bio-active constituents including saponins and isoflavonoids[279]. It is adaptogen, antipyretic, diuretic, tonic, uterine stimulant and vasodilator[218, 254, 279]. It is used in the treatment of cancer, prolapse of the uterus or anus, abscesses and chronic ulcers, chronic nephritis with oedema and proteinuria[176, 218]. Recent research in the West has shown that the root can increase the production of interferon and macrophages and thus help restore normal immune function in cancer patients[254, 279]. Patients undergoing chemotherapy or radiotherapy recover faster and live longer if given Huang Qi concurrently[254]. The root of 4 year old plants is harvested in the autumn and dried for later use[238, 254]. The plant is antipyretic, diuretic, pectoral and tonic[218]. Extracts of the plant are bactericidal, hypoglycaemic and hypotensive[218]. Cardiotonic, vasodilator[176].HIV Infections [301].

Other Uses

None known

Cultivation details

Requires a dry well-drained soil in a sunny position[1]. Prefers a sandy slightly alkaline soil[238]. Plants are hardy to at least -15°c[238]. There is some disagreement over the correct name for this species, with several authorities seeing it as part of A. penduliflorus[261]. The Flora of China treats it as a sub-species of A. mongholicus, as A. mongholicus dahurica[266]. Plants are intolerant of root disturbance and are best planted in their final positions whilst still small[200]. 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[200]. Many members of this genus can be difficult to grow, this may be due partly to a lack of their specific bacterial associations in the soil[200].

Propagation

Seed - best sown as soon as it is ripe in a cold frame[200]. A period of cold stratification may help stored seed to germinate[200]. Stored seed, and perhaps also fresh seed, should be pre-soaked for 24 hours in hot water before sowing - but make sure that you do not cook the seed[134, 200]. Any seed that does not swell should be carefully pricked with a needle, taking care not to damage the embryo, and re-soaked for a further 24 hours[134, 200]. Germination can be slow and erratic but is usually within 4 - 9 weeks or more at 13°c if the seed is treated or sown fresh[134]. As soon as it is large enough to handle, prick the seedlings out into individual pots and grow them on in the greenhouse for their first winter, planting them out into their permanent positions in late spring or early summer, after the last expected frosts.

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 :

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Expert comment

Author

Moench.

Botanical References

238266

Links / References

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

Readers comment

ayed   Mon Feb 4 2008

please what is the active constituent,it's structur, please send me more information about this plant becase that treat cancer

Yevon Zen/a.k.a Anthony   Sat Oct 4 2008

I would like to find this plant. I need to grow alot of them.if you or anyone who see's this E-mail me at [email protected]

Jack Sweeney   Sat Nov 22 2008

Oncology of Chinese Medicine Information about Chinese herbs

laurie stiers   Mon Sep 14 2009

Question: I believe some roots such as parsley or peony have stronger medicinal effects if left more than one year before harvest. Is this possibly also true for astragalus? thankyou, laurie stiers

   Jan 9 2012 12:00AM

This plant is one of the most important medicinal plants on the planet, IMHO. Seeds can be purchased through Horizon Herbs in Oregon (I have no financial connection). I have grown this plant, harvested this plant, processed it into medicine, used it as a medicine, used it in a variety of cooking (mostly soups) and consumed hundreds of kilos of it. Most of what is available on the market is cultivated, but I recently saw some wild-harvested roots at a herb market here in China. This is a highly regarded plant with abundant research. I have only one issue with this article and that is that the sources used, particularly Yueng Him-Che's book, are a little weak. I understand that this article was not meant to be exhaustive, I am only saying that it could be much better. Thanks so much for those involved in this project. My over-riding sense is that you all do a great job! Keep up the good work.

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Subject : Astragalus membranaceus  
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