Water arum (Calla palustris) is a herbaceous perennial found in aquatic-type environments such as bogs, marshes, pond peripheries, swamps, slow-moving streams, and water gardens. The entire plant is toxic, containing raphides of water-insoluble calcium oxalates and unverified proteinaceous toxins.
- Head shaking
- loss of appetite
- edema and blistering of the mouth
- restlessness
