Kentucky Nature Preserves Rare Plants

Kentucky State Nature Preserves Commission

Greater Bladderwort
Utricularia macrorhiza
Family: Lentibulariaceae

Protection Status:
State Status:  E
USFWS Status: {null}

Global Rank: G5
State Rank: S1

Deep or shallow quiet waters.

Species Description:
Perennial aquatic herb.

Flowering Period: Early May to mid October.

Additional Information at NatureServe

Diagnostic Characteristics:
Floating yellow-flowered aquatic plant buoyed by small bladders with air. This species differs from the more common U. gibba in having a thick main stem rather than threadlike, leaves to 7 cm with many segments, 6 to 20 flowers on the flowering stalk, and recurved fruiting pedicels.

Avoid changes in moisture/hydrologic conditions at the site. Changes could result from overstory removal, stream/wetland alteration or vegetation removal that would result in increased erosion.

Global Range:

Known Kentucky Occurrences:

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Data last updated: Wednesday, May 28, 2014
Kentucky State Nature Preserves Commission
801 Teton Trail
Frankfort,KY 40601
Phone: (502) 573-2886
Fax: (502) 573-2355
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