Survival of hydrilla at higher North American latitudes appears to be exclusively by means of stem tubers and axillary turions given that whole plants do not overwinter in northern localities (Harlan et al. 1985).
Survival of hydrilla at higher North American latitudes appears to be exclusively by means of stem tubers and axillaryturions given that whole plants do not overwinter in northern localities (Harlan et al. 1985).