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pick·er·el·weed | \ ˈpi-k(ə-)rəl-ˌwēd 
\
\Definition of pickerelweed
: a shallow-water monocotyledonous perennial plant (Pontederia cordata) chiefly of the eastern U.S. and Canada with large leaves and a spike of purplish-blue flowers
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Time Traveler for pickerelweed
The first known use of pickerelweed was in 1785
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