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Pleuraphis rigida Herbaceous Alliance | Western Ecology Working Group of...
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Name: Pleuraphis rigida Herbaceous Alliance Reference: Western Ecology Working Group of... Description: This herbaceous alliance of the Mojave and Colorado deserts occurs on flat ridges, lower slopes, and stabilized sand dunes. It intergrades with stands of Larrea tridentata and/or Yucca brevifolia, and occurs at elevations ranging from 75-1400 m. Yearly precipitation totals are between 0 and 25 cm. There is much year-to-year variation in precipitation. The summers are extremely hot. Winter temperatures, particularly at higher elevations, can get quite cold. Pleuraphis rigida (= Hilaria rigida) is the sole or dominant graminoid in the herbaceous layer. Other grasses may include Bouteloua eriopoda, Dasyochloa pulchella (= Erioneuron pulchellum), Bromus madritensis, Pleuraphis jamesii (= Hilaria jamesii), Achnatherum hymenoides (= Oryzopsis hymenoides), and others. Emergent shrubs may be present at a low percentage of cover, and scattered Larrea tridentata and/or Yucca brevifolia may be present.  Accession Code: VB.CC.17833.PLEURAPHISRIGID Plot-observations of this Community Concept: 0
	Party Perspective according to: NatureServe (organization) Perspective from: 26-Nov-1997 to: 01-May-2019
	status: accepted This Community's Level: Alliance This Community's Children: [none]		Names:   Scientific: Pleuraphis rigida Herbaceous Alliance   Translated: Big Galleta Herbaceous Alliance   UID: HIGHER_CLASS_UNIT.2.126036 NatureServe Explorer   Code: A.1246