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Sedum pulchellum - Clinopodium arkansanum - Sporobolus vaginiflorus Grassland | NatureServe Biotics 2019
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Name: Sedum pulchellum - Clinopodium arkansanum - Sporobolus vaginiflorus Grassland Reference: NatureServe Biotics 2019 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 <i>Valerianella radiata, Galium virgatum, Minuartia patula, Allium drummondii, Anemone caroliniana, Opuntia</i> spp., <i>Croton monanthogynus, Chamaesyce nutans, Arnoglossum plantagineum</i>, and <i>Ipomopsis rubra</i>. Endemic annuals include <i>Lesquerella pallida</i> and <i>Leavenworthia aurea var. texana</i>. A scattered shrub layer, including <i>Cercis canadensis, Cornus drummondii, Juniperus virginiana, Sideroxylon lanuginosum</i>, may be present on some sites.  Accession Code: urn:lsid:vegbank.org:commConcept:35984-{4EC0D46F-3FAE-4759-944F-27ED0A9EF9AD} Plot-observations of this Community Concept: 0
	Party Perspective according to: NatureServe (organization) Perspective from: 29-Sep-1998 to: ongoing
	status: accepted Community's Parent: Iva angustifolia - Clinopodium arkansanum - Distichlis spicata West Gulf Coastal Plain Saline & Weches Bedrock Grassland Alliance This Community's Level: Association This Community's Children: [none]		Names:   UID: ELEMENT_GLOBAL.2.689461 NatureServe Explorer   Code: CEGL007797   Translated: Widow's-cross - Limestone Calamint - Poverty Dropseed Grassland   Common: Weches Glade   Scientific: Sedum pulchellum - Clinopodium arkansanum - Sporobolus vaginiflorus Grassland (convergence) and Synonyms: (similar) CEGL007797 (similar) Sedum pulchellum - Clinopodium arkansanum - Sporobolus vaginiflorus Herbaceous Vegetation (similar) Sedum pulchellum - Clinopodium arkansanum - Sporobolus vaginiflorus Herbaceous Vegetation