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Patagonian Dry Grassland & Shrubland Macrogroup | NatureServe Biotics 2019
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Name: Patagonian Dry Grassland & Shrubland Macrogroup Reference: NatureServe Biotics 2019 Description: Steppe communities in this macrogroup occupy the majority of the Patagonia territory in Argentina and are characterized as xeric not only because of the extended dry periods they are adapted to, but also because of the effects of strong and cold drying winds in the areas where these grow and the species adaptations to cope with such extreme conditions. These steppes are dominated by the short, sclerophyllous shrub of the Asteraceae family, including <i>Nassauvia glomerulosa, Nassauvia ulicina</i>, and <i>Nassauvia axillaris</i>, forming different associations. These steppes have only between 10-20% vegetation cover and are no taller than 0.8 m. They are distributed on plateaus from 1000 m elevation to near the Atlantic Coast. Some of the associated species are psammophilous (<i>Stipa humilis</i> and <i>Stipa chrysophylla</i>) or halophilous (<i>Chuquiragua aurea, Frankenia patagonica</i>, and <i>Atriplex sagittifolia</i>), which is indicative of the environmental setting. <i>Berberis heterophylla, Acaena, Azorella, Senecio, Adesmia</i>, and <i>Festuca</i> species are characteristic accompanying species of these steppes. Communities dominated by <i>Junellia tridens</i> are also included in this macrogroup and they are typical pioneer communities occupying degraded areas. <i>Junellia</i> shrubs grow low to the ground, reaching about 60 cm, rarely over 1 m, and they facilitate the establishment of tuft grasses of <i>Carex patagonica</i>, as well as other species such as <i>Vicia pampicola, Lathyrus magellanicus, Adesmia villosa</i>, etc.  Accession Code: urn:lsid:vegbank.org:commConcept:40980-{ED984B64-5BFF-4351-A6AD-33FC025D7185} Plot-observations of this Community Concept: 0
	Party Perspective according to: NatureServe (organization) Perspective from: 17-Apr-2014 to: ongoing
	status: accepted Community's Parent: Patagonian Grassland & Shrubland Division This Community's Level: Macrogroup This Community's Children: [none]		Names:   UID: ELEMENT_GLOBAL.2.885086 NatureServe Explorer   Code: M749   Scientific: Patagonian Dry Grassland & Shrubland Macrogroup