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Leymus mollis - Abronia latifolia Grassland | NatureServe Biotics 2019
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Name: Leymus mollis - Abronia latifolia Grassland Reference: NatureServe Biotics 2019 Description: This herbaceous association is found on sand hummocks and foredunes in areas of incessant onshore winds, salt spray, and shifting sands. The few remaining stands are scattered from Washington to California. This sparse grassland is earliest native pioneer vegetation, occurring on the upper strand and foredunes, just above high-tide line. Desiccation is a major factor; and many of the species are succulent. The sand dunes are loose and easily transported, constantly burying the plants. Most of the species occurring here are stimulated to grow by burying, trapping sand until hummocks up to 5 m are formed. The hummocks are then wind-eroded, to form elsewhere. Total cover is 10-50%. Plant species composing this community are perennial grasses up to 70 cm tall, dominated by <i>Leymus mollis</i> with <i>Poa macrantha</i>. Low, often succulent, perennial forbs and subshrubs are also common, including <i>Abronia latifolia, Calystegia soldanella, Glehnia littoralis ssp. leiocarpa, Lupinus littoralis, Calystegia soldanella</i>, and <i>Tanacetum camphoratum</i>. This association used to be widespread, but has been almost been completely replaced by an introduced beachgrass, <i>Ammophila arenaria</i>.  Accession Code: urn:lsid:vegbank.org:commConcept:30705-{B30B495F-88BC-4865-B74A-5F6D2AAB371E} Plot-observations of this Community Concept: 0
	Party Perspective according to: NatureServe (organization) Perspective from: 11-May-1993 to: ongoing
	status: accepted Community's Parent: Poa macrantha - Leymus mollis - Festuca rubra Sand Dune Grassland Alliance This Community's Level: Association This Community's Children: [none]		Names:   UID: ELEMENT_GLOBAL.2.689728 NatureServe Explorer   Code: CEGL001796   Translated: American Dunegrass - Coastal Sand-verbena Grassland   Scientific: Leymus mollis - Abronia latifolia Grassland (convergence) and Synonyms: (similar) Leymus mollis ssp. mollis - Abronia latifolia Herbaceous Vegetation (similar) Leymus mollis ssp. mollis - Abronia latifolia Herbaceous Vegetation (similar) CEGL001796