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(Quercus stellata) / Schizachyrium scoparium - Piptochaetium avenaceum - Aristida purpurascens - Delphinium carolinianum Nepheline Syenite Wooded Grassland | NatureServe Biotics 2019
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Name: (Quercus stellata) / Schizachyrium scoparium - Piptochaetium avenaceum - Aristida purpurascens - Delphinium carolinianum Nepheline Syenite Wooded Grassland Reference: NatureServe Biotics 2019 Description: This association encompasses perennial grass glades with scattered trees, found zonally around the massive outcrops of nepheline syenite that form flat or slightly sloping outcrops and throughout the more broken nepheline syenite rock outcrops in the Upper West Gulf Coastal Plain of Arkansas. Vegetative cover in undisturbed glades is over 80%. The herbaceous vegetation is moderately short (to 60 cm [2 feet]) and is dominated by <i>Schizachyrium scoparium</i> with <i>Aristida purpurascens, Piptochaetium avenaceum</i>, and <i>Tridens flavus</i>. The herbaceous layer is diverse. Woody species consist of scattered <i>Quercus stellata</i> and (in some locations) <i>Pinus echinata</i> forming a sparse, short canopy (to 4.6 m [15 feet]) with considerable die-back during droughts. Occasional woody species may include <i>Carya texana, Cercis canadensis, Crataegus marshallii, Diospyros virginiana, Frangula caroliniana, Juniperus virginiana var. virginiana, Quercus velutina, Rhus aromatica, Rhus copallinum, Sideroxylon lanuginosum</i>, and <i>Ulmus alata</i>, depending on fire regime. This community grades into ~<i>Sporobolus clandestinus - Clinopodium arkansanum - Camassia scilloides - Phemeranthus calycinus</i> / Lichens Nepheline Syenite Grassland (CEGL008421)$$ on more extreme rock outcrops and <i>Quercus stellata - Carya texana - (Pinus echinata) / Schizachyrium scoparium - Helianthus hirsutus - Tradescantia ohiensis</i> xeric nepheline syenite knob woodland (this to be described by D. Zollner) on less extreme sites. The highest quality community examples are at the Bauxite Natural Areas and Granite Mountain in Saline and Pulaski counties, Arkansas. The type locality is in Saline County, Arkansas.  Accession Code: urn:lsid:vegbank.org:commConcept:36489-{6F399524-56BD-4003-9842-4BDEBF94578C} Plot-observations of this Community Concept: 0
	Party Perspective according to: NatureServe (organization) Perspective from: 24-May-2000 to: ongoing
	status: accepted Community's Parent: Sporobolus clandestinus - Clinopodium arkansanum - Delphinium carolinianum Nepheline Syenite Bedrock Grassland Alliance This Community's Level: Association This Community's Children: [none]		Names:   UID: ELEMENT_GLOBAL.2.684296 NatureServe Explorer   Code: CEGL008422   Translated: (Post Oak) / Little Bluestem - Blackseed Speargrass - Arrowfeather Three-awn - Carolina Larkspur Nepheline Syenite Wooded Grassland   Common: Nepheline Syenite Glade Wooded Grassland   Scientific: (Quercus stellata) / Schizachyrium scoparium - Piptochaetium avenaceum - Aristida purpurascens - Delphinium carolinianum Nepheline Syenite Wooded Grassland (convergence) and Synonyms: (similar) (Quercus stellata) / Schizachyrium scoparium - Piptochaetium avenaceum - Aristida purpurascens - Delphinium carolinianum Nepheline Syenite Wooded Herbaceous Vegetation (similar) CEGL008422 (similar) (Quercus stellata) / Schizachyrium scoparium - Piptochaetium avenaceum - Aristida purpurascens - Delphinium carolinianum Nepheline Syenite Wooded Herbaceous Vegetation