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Sedum pulchellum - Clinopodium arkansanum - Sporobolus vaginiflorus Herbaceous Vegetation | Southeastern Ecology Working Gro...
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Name: Sedum pulchellum - Clinopodium arkansanum - Sporobolus vaginiflorus Herbaceous Vegetation Reference: Southeastern Ecology Working Gro... Description: This community occurs on outcrops of marine sediment and glauconitic clays of the Weches Formation in central eastern Texas, primarily in San Augustine, Nacogdoches, and Sabine counties. These outcrops are exposed by natural erosion of hillside slopes. Soils are mapped as Trawick series (Mollic Hapludalfs) and are shallow, rocky, and basic, which inhibits growth of woody vegetation. Outcrops are seepy and saturated during winter and early spring but become hard and dry in the summer. Enormous seasonal variations in species dominance can occur. Other characteristic species include Valerianella radiata, Galium virgatum, Minuartia patula (= Arenaria patula), Allium drummondii, Anemone caroliniana, Opuntia spp., Croton monanthogynus, Chamaesyce nutans (= Euphorbia nutans), Arnoglossum plantagineum (= Cacalia plantaginea), and Ipomopsis rubra. Endemic annuals include Lesquerella pallida and Leavenworthia aurea var. texana (= Leavenworthia texana). A scattered shrub layer, including Cercis canadensis, Cornus drummondii, Juniperus virginiana, Sideroxylon lanuginosum, may be present on some sites.  Accession Code: VB.CC.25688.SEDUMPULCHELLUM Plot-observations of this Community Concept: 0
	Party Perspective according to: NatureServe (organization) Perspective from: 29-Sep-1998 to: 17-Nov-2014
	status: accepted Community's Parent: Sedum pulchellum Saturated Herbaceous Alliance This Community's Level: Association This Community's Children: [none]		Names:   Translated: Widow's-cross - Low Calamint - Poverty Dropseed Herbaceous Vegetation   Common: Weches Glade   UID: HIGHER_CLASS_UNIT.2.124769 NatureServe Explorer   Code: CEGL007797   Scientific: Sedum pulchellum - Clinopodium arkansanum - Sporobolus vaginiflorus Herbaceous Vegetation (convergence) and Synonyms: (undetermined) Sedum pulchellum - Clinopodium arkansanum - Sporobolus vaginiflorus Herbaceous Vegetation