Greater Bladderwort

(Utricularia macrorhiza)

 

Eggers, Steve D. and Donald M. Reed. 1997. Wetland plants and communities of Minnesota and Wisconsin. U.S. Army Corps of Engineers, St. Paul District.

Line Drawing: Britton, N.L., and A. Brown. 1913. An Illustrated Flora of the Northern United States and Canada, Second Edition.

 

Greater Bladderwort (Utricularia macrorhiza)

Identification: Plant aquatic with flowers on a long, naked stalk above water arising from a group of filamentous leaves below the water line or in mud. Flower yellow, globular appearing, with a lower, banner-shaped petal concave downward, and a large, basal, round hump.Upper petal ovate, concave upward, at an angle with the lower petal. Flower stem with multiple branches. Leaves filamentous, floating horizontally below the water line. Plant 2 to 3 feet high.

Distribution: Throughout North America.

Habitat: Great Bladderwort is found in quiet water near the shores of sluggish streams.

Flowering period: May to August.

Greater Bladderwort (Utricularia macrorhiza)

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The large plant size and globular flowers should easily identify this species.

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