from the GNU version of the Collaborative International Dictionary of English
- n. a blue-flowered aquatic plant (Pontederia cordata) having large arrow-shaped leaves. So called because common in slow-moving waters where pickerel are often found.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. American plant having spikes of blue flowers and growing in shallow water of streams and ponds
Sorry, no etymologies found.