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Clarence A. Rechenthin @ USDA-NRCS PLANTS Database |
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| G.A. Cooper @ USDA-NRCS PLANTS Database |
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Summary
Physical Characteristics
Astragalus crassicarpus is a PERENNIAL growing to 0.5 m (1ft 8in).
See above for USDA hardiness. It is hardy to UK zone 7. The species is hermaphrodite (has both male and female organs) and is pollinated by Bees, Lepidoptera (Moths & Butterflies).
It can fix Nitrogen.
It is noted for attracting wildlife.
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. caryocarpus. Ker-Gawl. A. mexicanus. A. succulentus. Geoprumnon succulentum.
Habitats
Cultivated Beds;
Edible Uses
Edible Parts: Seedpod
Edible Uses:
The thick fleshy unripe seedpods, which resemble green plums, are eaten raw or cooked[2, 177, 183]. They are highly esteemed[85]. The pods are about 25mm in diameter[235].
References More on Edible Uses
Medicinal Uses
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Antispasmodic Haemostatic Stimulant
A compound decoction or infusion of the root has been used to treat fits and convulsions and has been used on bleeding wounds[257]. It has also been taken or used externally as a stimulant[257].
References More on Medicinal Uses
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Other Uses
Nitrogen Fixer. Provides shelter for beneficial invertebrates: insects and other arthropods. A general nectary plant [1-2].
Special Uses
Food Forest Nitrogen Fixer
References More on Other Uses
Cultivation details
Requires a dry well-drained soil in a sunny position[1]. Plants are intolerant of root disturbance and are best planted in their final positions whilst still small[200]. The stems are sometimes prostrate[200]. This species is somewhat polymorphic and is separated into a number of distinct species by some botanists[235]. The form sometimes known as A. mexicanus has larger seedpods than the type, up to 35mm in diameter[235]. 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 clumper with limited spread [1-2]. The root pattern is rhizomatous with underground stems sending roots and shoots along their length [1-2].
References Carbon Farming Information and Carbon Sequestration Information
Temperature Converter
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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
Ground plum, Buffalo bean, Groundplum milk-vetch, Buffalo pea [1-4].
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Found In
Countries where the plant has been found are listed here if the information is available
Canada, Kuwait, North America, USA [1-4]. The USDA database lists Astragalus crassicarpus (groundplum milkvetch ) as native to some of the L48 (Lower 48 States), and Canada. Native to North American prairies but not the eastern forest region [1-2].
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 :
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.
Expert comment
Author
Nutt.
Botanical References
60200
Links / References
For a list of references used on this page please go here
Readers comment
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