Name:
Leymus cinereus - Leymus triticoides Alkaline Wet Meadow Alliance
Reference:
NatureServe Biotics 2019
Description:
This grassland alliance is of alkaline wetlands where tall bunchgrasses <i>Leymus cinereus</i> and/or <i>Leymus triticoides</i> are the dominant species. Other graminoids present may include <i>Achnatherum hymenoides, Achnatherum thurberianum, Carex praegracilis, Distichlis spicata, Elymus elymoides, Hesperostipa comata, Hordeum brachyantherum ssp. californicum, Hordeum jubatum, Juncus arcticus ssp. littoralis, Lolium perenne ssp. multiflorum, Onopordum acanthium, Pascopyrum smithii, Poa secunda, Pseudoroegneria spicata, Schoenoplectus</i> spp., and/or <i>Scirpus</i> spp. It is rarely without several introduced annual plants such as <i>Avena fatua, Brassica nigra, Bromus diandrus, Bromus hordeaceus, Carduus pycnocephalus, Lactuca serriola, Lolium perenne ssp. multiflorum, Polypogon monspeliensis, Sonchus</i> spp., or <i>Vulpia myuros</i>. This alliance occurs throughout much of the Intermountain West, including the Great Basin and Columbia River Basin, as well as California's Central Valley and coastal plains. Elevations range from sea level to 3000 m. Stands are restricted to intermittently flooded habitats such as playas, intermittent streams, dry washes, poorly drained floodplains, margins of marshes, and historic lake basins. Soils are saline or alkaline with a shallow water table. Soils are typically moderately deep silts and clays, and the soil surface often has high cover of bare ground.
Accession Code:
urn:lsid:vegbank.org:commConcept:38206-{D0B25418-858F-4DF9-9853-01FB6F27CEEE}
Plot-observations of this Community Concept:
0
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