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Quercus agrifolia / Toxicodendron diversilobum - (Corylus cornuta) Woodland | NatureServe Biotics 2019
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Name: Quercus agrifolia / Toxicodendron diversilobum - (Corylus cornuta) Woodland Reference: NatureServe Biotics 2019 Description: This association is known from the vicinity of the San Francisco Bay Area and at Point Reyes National Seashore. It has been observed in Alameda, Contra Costa, Marin, and Santa Cruz counties. This association is a relatively xeric south-facing woodland or forest. Most stands in the East Bay Hills are on middle to upper thirds of slopes or on edges of grasslands on all slope positions. Most stands appear to be on marine sedimentary rocks in the East Bay Hills, but may occur on granitic substrates and on calcareous substrates in the Santa Cruz Mountains. These stands alternate between stands of ~<i>Umbellularia californica - Quercus agrifolia / Toxicodendron diversilobum</i> Forest (CEGL003175)$$ on more mesic, neutral (northwest or southeast to east) exposures in many drainages in the East Bay Municipal Utility District and East Bay Regional Park lands. <i>Quercus agrifolia</i> is the sole or dominant tree forming an intermittent to continuous canopy usually between 10 and 20 m in height. <i>Umbellularia californica</i> maybe present, in low cover. The shrub layer is open to intermittent. <i>Toxicodendron diversilobum</i> is an important species. <i>Corylus cornuta</i> is present in some stands. Other shrub associates may include <i>Rubus ursinus, Frangula californica ssp. californica, Lonicera hispidula, Heracleum maximum</i>, and/or <i>Holcus lanatus</i>. The herbaceous layer is open but diverse. <i>Pteridium aquilinum, Clinopodium douglasii, Heteromeles arbutifolia, Stachys ajugoides</i>, and/or <i>Erechtites minimus</i> are often present.  Accession Code: urn:lsid:vegbank.org:commConcept:32052-{27727B02-77CD-4D5E-A508-15C15D58F182} Plot-observations of this Community Concept: 0
	Party Perspective according to: NatureServe (organization) Perspective from: 06-May-2010 to: ongoing
	status: accepted Community's Parent: Quercus agrifolia Woodland Alliance This Community's Level: Association This Community's Children: [none]		Names:   UID: ELEMENT_GLOBAL.2.683650 NatureServe Explorer   Code: CEGL003169   Translated: California Live Oak / Pacific Poison-oak - (Beaked Hazelnut) Woodland   Scientific: Quercus agrifolia / Toxicodendron diversilobum - (Corylus cornuta) Woodland (convergence) and Synonyms: (similar) Quercus agrifolia / Toxicodendron diversilobum - (Corylus cornuta) Woodland (similar) Quercus agrifolia / Toxicodendron diversilobum - (Corylus cornuta) Forest