water hyacinth - flower

aerenchyma aquatic being biology botanic botany crassipes culture devil eiccr eichhornia environment floating flooding flora freshwater green herbaceous hyacinth hydrophyte hydrophytic leaf leaves lilac lily living macrophyte natural nature nile orchid organism ornamental pan photosynthetic pickerelweed plant planta plantae plantes pontederiaceae sheets species submerged tropical vegetal vegetation violet water weed wetland