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Sedum pulchellum - Clinopodium arkansanum - Sporobolus vaginiflorus Herbaceous Vegetation | Nixon, E. S., and R. J. George. ...
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Name: Sedum pulchellum - Clinopodium arkansanum - Sporobolus vaginiflorus Herbaceous Vegetation
Reference: Nixon, E. S., and R. J. George. ...
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 (= Arenaria patula), Allium drummondii, Anemone caroliniana, Opuntia</i> spp., <i>Croton monanthogynus, Chamaesyce nutans (= Euphorbia nutans), Arnoglossum plantagineum (= Cacalia plantaginea)</i>, and <i>Ipomopsis rubra</i>. Endemic annuals include <i>Lesquerella pallida</i> and <i>Leavenworthia aurea var. texana (= Leavenworthia 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: VB.CC.36567.CEGL007797
Plot-observations of this Community Concept: 0
      Party Perspective according to: NatureServe (organization)
Perspective from: 17-Nov-2014 to: 01-May-2019
     
  • status: accepted
  • This Community's Level: association
  • This Community's Children: [none]
Names:   Common: Weches Glade
  Translated: Widow's-cross - Limestone Calamint - Poverty Dropseed Herbaceous Vegetation
  Scientific: Sedum pulchellum - Clinopodium arkansanum - Sporobolus vaginiflorus Herbaceous Vegetation
  Code: CEGL007797
  UID: ELEMENT_GLOBAL.2.689461 NatureServe ExplorerNatureServe Explorer logo