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astragalus
(redirected from Milkvetch)

   Also found in: Dictionary/thesaurus, Encyclopedia, Wikipedia 0.01 sec.
astragalus /as·trag·a·lus/ (as-trag´ah-lus) talus.astrag´alar
as·trag·a·lus (-strg-ls)
n.
See talus.

astragalus [ah-strag´ah-lus]
talus. adj., adj astrag´alar.

astragalus (aˑ·str·gä·ls),
n Latin names:
Astragalus membranaceus, Astragalus gummifer; part used: roots; uses: cold, fatigue, bronchitis, flu, immune system stimulant, reduction of side effects of chemotherapy; precautions: none known. Also called
huang-qi or
tragacanth.

Astragalus
a genus of the legume family Fabaceae in the Americas, Europe and Asia. Many of the Astragalus spp. are poisonous with several forms of poisoning.
A number of species of the genus grow preferentially in selenium-rich soils and accumulate much more selenium than other plants, enhancing the probability of producing selenium poisoning. Included are A. bisulcatus, A. pattersonii, A. pectinatus, A. praelongus, A. preussi, A. racemosus.
Many species of the genus contain toxic aliphatic nitro compounds. Poisoning is manifested by nitrite ('nitro') poisoning or by acute respiratory distress or chronic incoordination, blindness and respiratory stertor. Includes A. arequipensis, A. atropubescens, A. bergii, A. campestris, A. canadensis, A. chamissonis, A. cryptobotrys, A. distinens, A. emoryanus var. emoryanus, A. falcatus, A. garbancillo, A. hamosus, A. hylophylus, A. miser, A. miser var. hylophylus (locoweed, timber milk vetch), A. miser var. oblongifolus, A. miser var. serotinus, A. oblongifolus, A. palenae, A. pehuenches, A. pterocarpus, A. serotinus, A. tetrapterus, A. toanus, A. vesiculosus.
Long-term ingestion of any one of a series of species of the plant causes 'loco' or locoweed poisoning, an acquired lysosomal storage disease caused by swainsonine, which is manifested by incoordination, extreme hypersensitivity and excitability. Includes A. allochrous, A. argillophilus, A. bisulcatus, A. diphysus, A. earlei, A. lentiginosus, A. lonchocarpus, A. lusitanicus (Erophaca baetica), A. missouriensis, A. mollisimus, A. nothoxys, A. nuttallianus, A. pubentissimus, A. strictus, A. tephrodes, A. thurberi, A. wootonii, A. variabilis. Chronic heart failure due to swainsonine is caused by A. lentiginosus at high altitudes.
Abortion is a common manifestation and is accompanied by a great variety of skeletal defects including arthrogryposis and hypermobility. Called also locoweed, milk vetch.

astragalus
see talus.


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As the season moves on we might harvest perennial bunching onions, garlic chives, violets (both flowers and leaves are edible), and sorrel; medicinal perennials such as Chinese milkvetch (Astragalus membranaceus, one of the most important Chinese medicinal herbs), feverfew, lamb's ear, and yarrow; culinary herbs such as chamomile, lemon balm, catnip, and anise hyssop; and small fruits like bramble berries, cranberry, lingonberry, and wintergreen.
In the example of selenium bioaccumulation in Astragalus racemosus (common name: cream milkvetch, a member of the pea family), source apportionment is unambiguous because of the presence of a known bedrock source (Cretaceous shale; Fig.
Tennessee milkvetch (Astragalus tennesseensis--extirpated), a species of the glades and barrens in Tennessee and Alabama with disjunct occurrences in Illinois and Indiana, was collected at only one site in the state, near Lafayette (Stuart 1902).
 
 
 
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