The Berinu Riverhold is a wetland plant of Berinu and coastal Thazvaar with large bowl-shaped rosettes that store liters of fresh water, forming micro-habitats and marking stable, water-rich ground. Riverhold water is used as an expedition source in dry periods. Processed tissues produce a powerful painkiller that is also acetylcholine and cannot be overdosed. The plant’s presence supports insect and small aquatic life in deltas and floodplains.