Lead plant Meaning, Definition & Usage

noun shrub of sandy woodlands and stream banks of western United States having hoary pinnate flowers and dull-colored racemose flowers; thought to indicate the presence of lead ore
leadplant; Amorpha canescens.

WordNet

Definitions

(Bot.), a low leguminous plant, genus Amorpha (A. canescens), found in the Northwestern United States, where its presence is supposed to indicate lead ore. Gray.

Webster 1913

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