117. Twin Ponds

General Information

Reference Number: 117
State: Pennsylvania
County: Centre
Municipality: Halfmoon
USGS Quad: Port Matilda
Watershed: Juniata River
Hydrogeomorphic Class: Isolated Depression
Disturbance Class: Pristine
Dominant Vegetation Class:
Wetland Area: 0.12
Year(s) Sampled: 2000

Vegetation

Herbaceous
Percent Cover: 71.3%
Dominant Species
Common Name Scientific Name
Bur-reed Sparganium sp. 
Grass Grass sp.
Bugleweed/horebound Lycopus sp.
Bluegrass Poa sp.
Duckweed Lemna sp.
Woody
Percent cover: 50.0%
Dominant Species
Greenbrier/carrion flower Smilax sp.
White oak Quercus alba
Black gum Nyssa sylvatica
Eastern white pine Pinus strobus
Red maple Acer rubrum
Weighted Indicator Status (dominant species)
Herbaceous:
Shrub/Tree: —/3.46
Weighted Indicator Status (all species)
Herbaceous: 1.61
Shrub/Tree: —/3.80
Species Richness
Total: 21
Herbaceous: 14
Shrub/Tree: 1/6

Soils

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Hydrology

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pH (mean):
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