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Harrell Prairie Botanical Area
Harrell Prairie Botanical Area or Harrell Prairie Hill is a tallgrass prairie nature preserve located within Bienville National Forest near Forest, Mississippi. It is a rare remaining example of the Jackson Prairie Belt in Mississippi. It was declared a National Natural Landmark in May 1976 and a Botanical Area by the Forest Service in 1980.
==Description==
There are 68 identified prairies in the National Forest, locally called cedar fields, which avoided agriculture development due to their purchase by lumber companies.〔 Harrell Hill contains the "largest and least disturbed" example of the Jackson Prairie in Mississippi.〔〔(【引用サイトリンク】title=Harrell Prairie Botanical Area )〕 The Jackson Prairie is a disjunct of the Blackbelt (or Black Prairie) physiographic area in Mississippi and Alabama.〔
The alkaline soils (pH greater than 7.5) ensure a unique plant ecology unlike the nearby woodlands of Loblolly Pine (''Pinus taeda'').〔(【引用サイトリンク】title=Holly Springs, Tombigbee, Delta, Bienville, De Soto, and Homochitto National Forests )〕 Common grasses include Little Bluestem (''Schizachyrium scoparium''), Indiangrass (''Sorghastrum nutans''), Big Bluestem (''Andropogon gerardii)''), Broomsedge Bluestem (''A. virginicus var. virginicus''), Bushy Broomsedge (''A. glomeratus''), and Switchgrass (''Panicum virgatum''). Other herbaceous plants include Yellow Coneflower (''Rudbeckia pinnata''), Eastern Purple Coneflower (''Echinacea purpurea''), Blazing Star (''Liatris spp.''), False Boneset (''Brickellia'' ''eupatorioides'' var. ''eupatorioides''), Green Milkweed (''Asclepias hirtella''), Green Comet Milkweed (''A. viridiflora''), Purple Prairie Clover (''Dalea'' ''purpurea'' var. ''purpurea''), White Prairie Clover
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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