lead plant definition

  • noun:
    • a reduced leguminous plant, genus Amorpha (Amorpha canescens), based in the Northwestern united states of america, where its existence is meant to indicate lead ore.
    • shrub of sandy woodlands and flow banks of western united states of america having hoary pinnate plants and dull-colored racemose flowers; thought to show the current presence of lead ore

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  • Hypernym for "lead plant"
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