Several types of lilies are poisonous to humans. Climbing, glory and checkered lilies are highly toxic, and ingestion sometimes leads to severe illness or death. If any of these plants are eaten, a physician or Poison Co... More »

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Several types of lilies are toxic to dogs. Owners must avoid exposing their dogs to the peace lily, calla lily, amaryllis, lily of the valley, autumn crocus and palm lily. Ingestion of these plants can cause gastrointest... More »

According to the American Society for the Prevention of Cruelty to Animals, the hibiscus plant is toxic to dogs, cats and horses. When consumed, the plant can cause vomiting, diarrhea and even nausea. More »

Water lilies grow from a tuber underneath the water. As the plants grow, the stems and leaves break the surface of the water, and the blossoms begin to float. A person is able to grow water lilies in a tub at home as wel... More »

Water lilies, bellflower and sedges are all examples of freshwater plants. Rosettes, ferns and mosses as well as stem plants such as hornwort and creeping jenny are also freshwater plants commonly used in aquariums. Fres... More »

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Princess lilies produce a large number of flowers during the blooming season and are excellent flowers for cutting due to their longevity. They are available in a variety of colors and have streaked petals that add a con... More »

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Some plants that grow in rivers are cattails, yellow water lilies, floating duckweed and water hyacinth. Other plants found in rivers are water cress and fontinalis, or fountain moss. More »