pickerel weed pic·ke·rel·weed uncommon noun 1. American plant having spikes of blue flowers and growing in shallow water of streams and ponds Synonymspickerelweedpickerel weedwampeePontederia cordata Related words Broader terms aquatic plant Parts Pontederia WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.
