submersed plant with whorled lanceolate leaves and solitary axillary flowers; Old World plant naturalized in southern United States and clogging Floridas waterways
[ Syn: hydrilla verticillata ]
submersed plant with whorled lanceolate leaves and solitary axillary flowers; Old World plant naturalized in southern United States and clogging Floridas waterways
[ Syn: hydrilla verticillata ]