liliopsid genus, monocot genus - genus of flowering plants having a single cotyledon (embryonic leaf) in the seed

family Pontederiaceae, pickerelweed family, Pontederiaceae - aquatic or bog plants

Eichhornia crassipes, Eichhornia spesiosa, water hyacinth, water orchid - a tropical floating aquatic plant having spikes of large blue flowers; troublesome in clogging waterways especially in southern United States