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Astragalus (weeds) L.
The genus of Astragalus is very large and contains more than 2000 species of herbs and shrubs. They are widely distributed in the northern hemisphere and some species are cultivated to produce gum tragacanth as a medicine and food additive. A few species are regarded as agricultural weeds like Astragalus mollissimus which is poisonous to livestock and can infest pastures in North America.
Currently, the following species have been entered into the system: