amsonia

noun
am·so·nia | \amˈsōnēə, -nyə\

Definition of amsonia 

1 capitalized : a genus of herbs (family Apocynaceae) having a milky juice, alternate entire leaves, and showy bluish flowers in terminal cymes, one species (A. tabernaemontana) being common in the southeastern U.S.

2 plural -s : an herb of the genus Amsonia

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First Known Use of amsonia

1806, in the meaning defined at sense 1

History and Etymology for amsonia

borrowed from New Latin, from John Amson, flourished 1738–circa 1764 Virginia physician + New Latin -ia -ia entry 1

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The first known use of amsonia was in 1806

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