Pepper grass is a native oxygenator which is declining rapidly in the wild and classified as vulnerable and protected under the Wildlife and Countryside Act. A small plant this is actually a type of creeping fern with hair-like leaves that unfurl from tight coils rising from a creeping stem. Also known as Pillwort with the ‘pill’ referring to the tiny round spore cases at the bases of the stems. Slow growing it reaches a height of 10-15cm. Happy in ponds with fluctuating water levels and moving water.