125295 NEW ZEALAND PIGMYWEED Crassula helmsii (Crassulaceae) Prostrate on land. Unwelcome, creeping perennial that colonises ponds and their margins, eventually excluding all native species. FLOWERS are tiny with 5 white or pink petals (Jun-Sep). FRUITS are dry and splitting. LEAVES are narrow, fleshy and 5-10mm long. STATUS-Introduced, spreading and a major threat to native aquatic plants.