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Leymus mollis ssp. mollis - Abronia latifolia Herbaceous Vegetation | Western Ecology Working Group of...
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Name: Leymus mollis ssp. mollis - Abronia latifolia Herbaceous Vegetation Reference: Western Ecology Working Group of... 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 Leymus mollis (= Elymus mollis) with Poa macrantha. Low, often succulent, perennial forbs and subshrubs are also common, including Abronia latifolia, Calystegia soldanella (= Convolvulus soldanella), Glehnia littoralis ssp. leiocarpa (= Glehnia leiocarpa), Lupinus littoralis, Calystegia soldanella, and Tanacetum camphoratum. This association used to be widespread, but has been almost been completely replaced by an introduced beachgrass, Ammophila arenaria.  Accession Code: VB.CC.25718.LEYMUSMOLLISSSP Plot-observations of this Community Concept: 0
	Party Perspective according to: NatureServe (organization) Perspective from: 26-Nov-1997 to: 17-Nov-2014
	status: accepted Community's Parent: Leymus mollis Herbaceous Alliance This Community's Level: Association This Community's Children: [none]		Names:   Translated: Sea Lyme Grass - Yellow Sand-verbena Herbaceous Vegetation   UID: HIGHER_CLASS_UNIT.2.125878 NatureServe Explorer   Code: CEGL001796   Scientific: Leymus mollis ssp. mollis - Abronia latifolia Herbaceous Vegetation (convergence) and Synonyms: (undetermined) Leymus mollis ssp. mollis - Abronia latifolia Herbaceous Vegetation