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Bromus diandrus - Bromus hordeaceus - Trifolium spp. - Daucus pusillus Herbaceous Vegetation | Western Ecology Working Group of...
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Name: Bromus diandrus - Bromus hordeaceus - Trifolium spp. - Daucus pusillus Herbaceous Vegetation Reference: Western Ecology Working Group of... Description: This herbaceous association is currently only known from Yosemite National Park in California, and the following description is based on occurrences there. Additional information will be added as it becomes available. Stands of this herbaceous vegetation are found at low elevations (520-610 m [1700-2000 feet]) on the midslope of southeast- to west-facing, somewhat steep to steep (17-29°), concave, undulating and linear slopes. Soils are somewhat poorly drained to well-drained with textures ranging from loam to clay loam from metamorphic, schist and gneiss parent material. Litter ranges from 60-96% cover. Disturbance from invasion of exotics is common and impact levels are low to high. This association often forms a continuous, sometimes open, herbaceous layer dominated by <i>Trifolium microcephalum, Daucus</i> sp., <i>Bromus hordeaceus</i>, and <i>Galium parisiense</i>. <i>Daucus pusillus, Clarkia purpurea</i>, and <i>Hypochaeris glabra</i> are also present. <i>Centaurea solstitialis</i> and <i>Lotus unifoliolatus var. unifoliolatus</i> can be common at many sites. <i>Lessingia leptoclada, Bromus arenarius, Trifolium ciliolatum, Lupinus bicolor, Lactuca serriola</i>, and <i>Thysanocarpus curvipes</i> are often found in this association. A variety of other species may be found contributing to minor cover and often include <i>Avena barbata, Bromus diandrus, Calandrinia ciliata, Castilleja densiflora, Croton setigerus, Silene gallica, Stephanomeria virgata, Torilis arvensis</i>, and <i>Vulpia myuros</i>.  Accession Code: VB.CC.34512.CEGL008666 Plot-observations of this Community Concept: 0
	Party Perspective according to: NatureServe (organization) Perspective from: 17-Nov-2014 to: 01-May-2019
	status: accepted This Community's Level: association This Community's Children: [none]		Names:   UID: ELEMENT_GLOBAL.2.684563 NatureServe Explorer   Translated: Ripgut Brome - Soft Brome - Clover species - American Wild Carrot Herbaceous Vegetation   Scientific: Bromus diandrus - Bromus hordeaceus - Trifolium spp. - Daucus pusillus Herbaceous Vegetation   Code: CEGL008666