Kentucky Nature Preserves Rare Plants

Kentucky State Nature Preserves Commission

Large Sedge
Carex gigantea
Family: Cyperaceae

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

Global Rank: G4
State Rank: S1S2

Bottomland forests and floodplain swamps; also cypress depressions (Weakley 2011).

Species Description:
Perennial sedge.

Flowering Period: Early June to late August.
Fruiting Period: Early July to late September.

Additional Information at NatureServe

Diagnostic Characteristics:
This sedge is in the section Lupulinae. The leaves are evidently septate and 5-16 mm wide. The perigynia are spreading rather than erect, appearing inflated and not tight around the achene and over 11 mm long with conic beak. Achenes are wider than long, ca 3 mm wide and widest above the middle. The style is boney and persistent on the achene when mature.

Exotic pest plants are a threat to this species. Avoid changes in hydrologic conditions at the site which could result from overstory removal, stream/wetland alteration or impacts due to erosion.

Global Range:
Delaware to Florida and Texas; in the Mississippi River Valley to southern Illinois.

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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