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Astragalus canadensis - L.

Common Name Canadian Milkvetch, Shorttooth Canadian milkvetch, Morton's Canadian milkvetch
Family Fabaceae or Leguminosae
USDA hardiness 7-10
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].
Habitats Shores and rich thickets[43]. Rocky and sandy thickets in Texas[274].
Range Central and eastern N. America - Quebec to Saskatchewan, New York, Louisiana, Nebraska and Utah.
Edibility Rating    (3 of 5)
Other Uses    (3 of 5)
Weed Potential No
Medicinal Rating    (2 of 5)
Care (info)
Frost Hardy Well drained soil Full sun
Astragalus canadensis Canadian Milkvetch, Shorttooth Canadian milkvetch, Morton


http://commons.wikimedia.org/wiki/File:Canadamilkvetch.jpg
Astragalus canadensis Canadian Milkvetch, Shorttooth Canadian milkvetch, Morton
F. Duft @ USDA-NRCS PLANTS Database / USDA NRCS. 1992. Western wetland flora: Field office guide to plant species. West Region, Sacramento.

 

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Summary


Physical Characteristics

 icon of manicon of flower
Astragalus canadensis is a PERENNIAL growing to 1 m (3ft 3in).
See above for USDA hardiness. It is hardy to UK zone 8. It is in flower in July. The species is hermaphrodite (has both male and female organs) and is pollinated by Bees, Lepidoptera (Moths & Butterflies).
It can fix Nitrogen.
Suitable for: light (sandy) and medium (loamy) soils and prefers well-drained soil. Suitable pH: mildly acid, neutral and basic (mildly alkaline) soils. It cannot grow in the shade. It prefers dry soil.

UK Hardiness Map US Hardiness Map

Synonyms

A. carolinianus. L.

Plant Habitats

 Cultivated Beds;

Edible Uses

Edible Parts: Root
Edible Uses:

Root - raw or boiled[22, 46, 61, 105, 177]. They were often used in a broth[257]. The roots are gathered in spring or autumn[161]. Some caution is advised, if the root is bitter it could be due to the presence of toxic alkaloids[65].

References   More on Edible Uses

Medicinal Uses

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Analgesic  Febrifuge  Haemostatic

The root is analgesic and antihaemorrhagic[257]. It can be chewed or used as a tea to treat chest and back pains, coughs and the spitting up of blood[257]. A decoction of the root is used as a febrifuge for children[207, 257]. A poultice made from the chewed root has been used to treat cuts[257].

References   More on Medicinal Uses

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Other Uses

Nitrogen fixer.

Special Uses

Food Forest  Nitrogen Fixer

References   More on Other Uses

Cultivation details

Requires a dry well-drained soil in a sunny position[1]. This species is not hardy in the colder areas of the country, it tolerates temperatures down to between -5 and -10°c[200]. 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]. For polyculture design as well as the above-ground architecture (form - tree, shrub etc. and size shown above) information on the habit and root pattern is also useful and given here if available. The plant growth habit is a runner spreading indefinitely by rhizomes or stolons [1-2].

References   Carbon Farming Information and Carbon Sequestration Information

Temperature Converter

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

Fahrenheit:

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Plant 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

Native Range

NORTHERN AMERICA: Canada, Northwest Territories (southwest), Québec, Ontario, Saskatchewan, Alberta, Manitoba, British Columbia, United States, Indiana, Michigan, New Jersey, New York, Ohio, Pennsylvania, Vermont, West Virginia, Illinois, Iowa, Kansas, Minnesota, Missouri, Nebraska, North Dakota, Oklahoma, South Dakota, Wisconsin, Colorado, Idaho, Montana, Oregon, Washington (east), Wyoming, Alabama, Arkansas, Georgia, Kentucky, Louisiana, Maryland, North Carolina, South Carolina, Tennessee, Virginia, New Mexico (north), Texas, California (northeast), Utah,

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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Astragalus aboriginorumIndian MilkvetchPerennial0.3 -  LMND20 
Astragalus adscendensPersian MannaShrub0.0 -  LMND202
Astragalus boeticusSwedish CoffeeAnnual0.6 7-10  LMND20 
Astragalus brachycalyx Shrub0.0 -  LMND202
Astragalus carduchorum Shrub0.0 -  LMND202
Astragalus chartostegius Shrub0.0 -  LMND10 
Astragalus chinensisHua Huang Qi, Chinese milkvetchPerennial0.7 0-0  LMND02 
Astragalus christianus Perennial0.2 -  LMNDM20 
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Astragalus crassicarpusGround Plum, Groundplum milkvetchPerennial0.5 6-9  LMND413
Astragalus creticus Shrub0.0 -  LMND202
Astragalus densissimus Shrub0.5 -  LMND202
Astragalus diphysusSpecklepod Milkvetch, Freckled milkvetchPerennial0.0 0-0  LMND30 
Astragalus echinus Perennial0.5 -  LMND10 
Astragalus edulisMilkvetchAnnual0.3 0-0  LMND20 
Astragalus exscapus Perennial0.3 4-8  LMND012
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Astragalus florulentus Shrub0.0 -  LMND202
Astragalus garbancillo Shrub0.0 -  LMND001
Astragalus globiflorus Shrub0.2 -  LMND202
Astragalus glycyphyllosMilk Vetch, Licorice milkvetchPerennial0.2 3-7  LMND104
Astragalus gummiferTragacanth, Gum tragacanth milkvetchShrub0.3 7-10  LMND232
Astragalus hamosusEuropean milkvetchAnnual0.6 0-0  LMND12 
Astragalus henryiQin Ling Huang QiPerennial0.8 -  LMNDM10 
Astragalus hoantchyWu La Te Huang QiPerennial0.4 -  LMNDM11 
Astragalus kurdicus Shrub0.2 -  LMND202
Astragalus leioclados Shrub0.0 -  LMND202
Astragalus massiliensis Shrub0.3 5-9  LMND303
Astragalus membranaceusHuang QiPerennial0.3 5-9  LMND053
12

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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Subject : Astragalus canadensis  
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