Many of the milkweeds have long been known to have more or less poisonous properties. [Please select]
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Within the last few years it has been discovered that certain of the milkweeds going under the popular name of whorled milkweeds are especially toxic. [Please select]
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There are at least four species of whorled milkweeds, but two of them are particularly important from the standpoint of people handling livestock. [Please select]
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