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Swollen Bladderwort

Per Maine DEP:

Swollen bladderwort (Utricularia inflata) is a free-floating, submerged plant native to The Atlantic and Gulf coastal plains, extending from southern New Jersey to Florida and westward to eastern Texas and southeastern Oklahoma. It has been introduced to parts of New England, New York, and the state of Washington. This species can be quite invasive, becoming dominant in ponds and displacing other native aquatic plants, and can be expected to continue expanding its range. The submersed vegetative parts of the plant overwinter under the ice and begin growing again in spring. U. inflata reproduces by fragmentation and seeds and can easily spread to new locations and new waterbodies. A small piece of the plant can be transported by fishing gear, boats, trailers, and duck hunting decoys. The submersed vegetative part of the plant overwinters under the ice and begins growing again in spring.

Photo: John McPhedran, Maine DEP. Drawing: Britton, N.L., and A. Brown. 1913.
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