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A PLANTS profile of Astragalus mollissimus (woolly locoweed) from the USDA PLANTS database ... Astragalus mollissimus Torr. woolly locoweed; ... Astragalus mollissimus var. mogollonicus woolly locoweed...
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plants.usda.gov/java/profile?symbol=ASMO7
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There are many species of Astragalus, and some of them are very hard to differentiate. A common one on the Wasatch foothills is Astragalus utahensis, also called the Pink Lady Slipper. It is probably the species shown in the top two photos.
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www.rootcellar.us/wildflowers/astrag.htm
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Locoweed species (Astragalus and Oxytropis spp.) are a serious toxic plant problem for grazing livestock. Horses and sheep have been conditioned to avoid eating locoweed using the aversive agent LiCl.
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jas.fass.org/cgi/content/abstract/85/7/1836
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Spotted locoweed (Astragalus lentiginosus var. diphysus) is a toxic, perennial plant that may, if sufficient precipitation occurs, dominate the herbaceous vegetation of pinyon-juniper woodlands on the Colorado Plateau.
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jas.fass.org/cgi/content/full/81/9/2285
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Loco intoxication: indolizidine alkaloids of spotted locoweed (Astragalus lentiginosus). RJ Molyneux and LF James. References. SCIENCE 13: 176 (1889). ...
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www.sciencemag.org/cgi/content/abstract/216/4542/190
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Locoweed, Astragalus lentiginosus was extracted with ether (EE) and water (WE). These and the plant residue were mixed with basal diet (BD) and fed to ...
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www.ncbi.nlm.nih.gov/pmc/articles/PMC1319699/
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Locoweed, Astragalus lentiginosus, was fed to pregnant ewes for various periods during gestation. The principal gross effects on the developing fetuses were ...
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www.ncbi.nlm.nih.gov/pmc/articles/PMC1277568/
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The third type of poisoning and probably the most severe, called "locoweed poisoning" or "locoism", is caused by several species of Astragalus and a few species of Oxytropis which synthesize the alkaloid swainsonine.
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loco.biosci.arizona.edu/astragalus/locoweedspp.html
loco.biosci.arizona.edu/astragalus/locoweedspp.html
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To better characterize and compare the toxicity of and lesions produced by locoweed (Astragalus mollissimus) with those of swainsonine and a related glycoside inhibitor, castanospermine, 55 Sprague-Dawley rats were randomly divided into 11 groups of five animals each.
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www.vetpathology.org/cgi/content/abstract/32/3/289
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