species of cattails are adapted to different water depths.

Well-developed aerenchymae make the plants tolerant of submersion. Even the dead stalks are capable of transmitting oxygen to the rooting zone.

Although Typha species are native wetland plants, they can be aggressive in their competition with other native species. They have been problematic in many regions in North America, from the Great Lakes to the Everglades. Native sedges are displaced and wet

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