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Centromadia pungens - Hemizonia sp. Vernal Pool Alliance | NatureServe Biotics 2019
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Name: Centromadia pungens - Hemizonia sp. Vernal Pool Alliance Reference: NatureServe Biotics 2019 Description: This alliance consists of intermittent cover of herbs &lt;1 m in height. <i>Centromadia pungens</i> and/or a <i>Hemizonia</i> species is conspicuous to dominant in the herbaceous layer with <i>Atriplex</i> spp., <i>Bromus</i> spp., <i>Deschampsia danthonioides, Downingia bella, Erodium cicutarium, Frankenia salina, Hirschfeldia incana, Hordeum murinum, Lasthenia californica, Lasthenia fremontii, Trifolium depauperatum</i>, and <i>Trifolium variegatum</i>. Emergent shrubs may be present at low cover, including <i>Suaeda moquinii</i>. This alliance is found in vernally wet habitats, including edges of alkaline vernal pools, bottoms of shallow pools, and alkaline flats subjected to periodic or intermittent water inundation at elevations ranging from 0-900 m in central California. Soils are fine-textured alluvium, sometimes underlain by claypan or another impervious layer.  Accession Code: urn:lsid:vegbank.org:commConcept:39369-{DCD87F75-14F6-42DA-B874-80A757A699FC} Plot-observations of this Community Concept: 0
	Party Perspective according to: NatureServe (organization) Perspective from: 21-Feb-2015 to: ongoing
	status: accepted Community's Parent: Californian Vernal Pool Group This Community's Level: Alliance This Community's Children: [none]		Names:   UID: ELEMENT_GLOBAL.2.943205 NatureServe Explorer   Code: A4170   Translated: Common Tarweed - Tarweed species Vernal Pool Alliance   Common: Tarweed Alkali Vernal Pool & Flat   Scientific: Centromadia pungens - Hemizonia sp. Vernal Pool Alliance