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Cakile edentula ssp. edentula - Chamaesyce polygonifolia Sparse Beach Vegetation | NatureServe Biotics 2019
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Name: Cakile edentula ssp. edentula - Chamaesyce polygonifolia Sparse Beach Vegetation Reference: NatureServe Biotics 2019 Description: This is a sparsely vegetated upper beach community occurring on unstable sands and often gravels and cobbles just above mean high tide on maritime beaches and foredunes along the middle and northern Atlantic Coast. It also occurs on small bay islands and bay sides of barrier beaches. This association occurs at the wrack line where there is regular deposition of wave-deposited flotsam. The setting of this association is often dry sand, but is irregularly flooded by spring or storm tides. Vegetation cover is variable, depending on the amount of exposure to wave and wind action, but is generally sparse and characterized by annuals and biennials. Species composition can change dramatically from year to year but frequently includes <i>Cakile edentula ssp. edentula</i>, as well as <i>Salsola kali ssp. kali, Chamaesyce polygonifolia, Honckenya peploides, Cenchrus tribuloides, Amaranthus retroflexus, Chenopodium album, Erechtites hieraciifolius, Xanthium strumarium</i>, and <i>Atriplex cristata</i>. <i>Panicum amarum var. amarum</i> is a frequent component south of the Delaware Bay. Globally rare species such as <i>Polygonum glaucum</i> and <i>Amaranthus pumilus</i> occur in this habitat. Sparse <i>Ammophila breviligulata</i> can occur sporadically as a common associate, colonizing from the adjacent beachgrass community. Diagnostic species are <i>Cakile edentula ssp. edentula, Salsola kali ssp. kali, Atriplex cristata</i>, and <i>Chamaesyce polygonifolia</i>. This community occurs in maritime coastal areas from southern Maine to Cape Hatteras, North Carolina.  Accession Code: urn:lsid:vegbank.org:commConcept:33191-{09A1852E-6248-435F-9C37-72A8FEC7F754} Plot-observations of this Community Concept: 20
	Party Perspective according to: NatureServe (organization) Perspective from: 06-Sep-2013 to: ongoing
	status: accepted Community's Parent: Cakile edentula ssp. edentula Atlantic Beach Alliance This Community's Level: Association This Community's Children: [none]		Names:   UID: ELEMENT_GLOBAL.2.684786 NatureServe Explorer   Code: CEGL004400   Translated: American Searocket - Seaside Sandmat Sparse Beach Vegetation   Common: North Atlantic Upper Ocean Beach   Scientific: Cakile edentula ssp. edentula - Chamaesyce polygonifolia Sparse Beach Vegetation (convergence) and Synonyms: (similar) Cakile edentula ssp. edentula - Chamaesyce polygonifolia Sparse Vegetation (similar) Cakile edentula ssp. edentula - Chamaesyce polygonifolia Sparse Vegetation (similar) CEGL004400