KNP Rare Plants Database


 
KY Office of Kentucky Nature Preserves




Woodland Beakrush
Scirpus expansus
Family: Cyperaceae

Protection Status:
State Status:  E
USFWS Status: 

Global Rank: G4
State Rank: S1S2

   

Photo by University of Tennessee Herbarium (TENN)
Habitat:
Swamps, bogs and streamsides.

Species Description:
Perennial herb.

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

Additional Information at NatureServe

Diagnostic Characteristics:
The lower leaf blades and sheaths of this bulrush are purplish and the top of the culm is scabrous. Also, stems do not come from the ground in clusters but as single stems. The styles are divided into 3 parts (trifid). Scales in the infloresence are dark (brown to black) with a green midstripe. Spikelets are obviously drooping as in S.cyperinus.

Management:
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:
Species occurrence map

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Data Last Updated: November 2018
Office of Kentucky Nature Preserves
300 Sower Blvd
Frankfort,KY 40601
Phone: (502) 573-2886
Email:
naturepreserves@ky.gov
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