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Parthenium incanum / Bouteloua eriopoda Shrub Herbaceous Vegetation | Western Ecology Working Group of...
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Name: Parthenium incanum / Bouteloua eriopoda Shrub Herbaceous Vegetation Reference: Western Ecology Working Group of... Description: This plant community is known from foothills of isolated mountain ranges of the northern Chihuahuan Desert. Occurrences have been documented from the San Andres Mountains, Sierra Oscura, Otero Mesa, and Guadalupe Mountains in New Mexico, and the Sierra del Carmen in Coahuila, and Ojo Calliente in Chihuahua, Mexico. It may be found in similar habitats in Trans-Pecos Texas. This grassland association occurs on rocky slopes of low-lying hills and mountain footslopes at elevations of 980-1920 m (3200-6300 feet) and can also can extend onto upper alluvial fans and piedmonts. It occurs on both igneous and sedimentary substrates, with soils that are generally Orthids or Argids with coarse to fine-silty particle size classes. Slope grades are typically moderate to steep and occur on various aspects. Abundant and often luxuriant grass cover, with a diverse mix of low-lying Chihuahuan shrub species, characterizes this Chihuahuan Desert grassland. Bouteloua eriopoda is well-represented to luxuriant in cover and dominates the herbaceous layer, but can be patchy. Among the 31 grasses recorded for the type, Bouteloua curtipendula, Dasyochloa pulchella (= Erioneuron pulchellum), and Aristida purpurea are the most abundant and consistent. Shrubs are often abundant, diverse, and variable. The well-represented to abundant Parthenium incanum is diagnostic, with Larrea tridentata, Opuntia phaeacantha, and Viguiera stenoloba as occasional subdominants. Forbs are highly diverse (68 species) and variable. Bahia absinthifolia is common along with numerous cacti such as Echinocereus triglochidiatus.  Accession Code: VB.CC.24150.PARTHENIUMINCAN 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: Bouteloua eriopoda Xeromorphic Shrub Herbaceous Alliance This Community's Level: Association This Community's Children: [none]		Names:   Translated: Mariola / Black Grama Shrub Herbaceous Vegetation   UID: ELEMENT_GLOBAL.2.687671 NatureServe Explorer   Code: CEGL001734   Scientific: Parthenium incanum / Bouteloua eriopoda Shrub Herbaceous Vegetation (convergence) and Synonyms: (undetermined) Parthenium incanum / Bouteloua eriopoda Shrub Herbaceous Vegetation