water hyacinths (eichhornia azurea), purple inflorescences of an aquatic invasive plant

asymmetrical flowers water hyacinths eichhornia aquatic plant beautiful flower bloom blooming blossom blossoming commelinids common hyacinth eceng gondok ecology crassipes flora floral hydrophytes invasive species lake leaf lotus monocots natural nature ovate leaves azurea diversifolia heterosperma natans petal pontederiaceae purple quarantine spongy spring tropical plants vegetation violet wild