Name:
Southern Chaco Xeromorphic Scrub & Savanna Macrogroup
Reference:
NatureServe Biotics 2019
Description:
This macrogroup represents open savannas with very scattered trees to parkland physiognomies growing respectively on poorly drained to moderately drained rolling plains of the lower Uruguay River basin. The trees species are of Chaquean floristic affinity. Soil characteristics vary depending on the hydrologic conditions. On poorly drained soils the common trees are <i>Acacia caven, Aspidosperma quebracho-blanco, Geoffroea decorticans</i>, while on parkland savannas the dominants are <i>Prosopis affinis</i> or <i>Prosopis nigra</i>. Besides the trees there are several accompanying shrub species, vines, forbs, cacti and grasses, including <i>Agrostis montevidensis, Bothriochloa laguroides, Bouteloua megapotamica, Bromelia serra, Bromus catharticus, Carex bonariensis, Chaptalia ignota, Cienfuegosia sulfurea, Cuphea fruticosa, Dichondra sericea var. tomentosa, Elephantopus mollis, Eleusine indica, Eragrostis neesii var. neesii, Evolvulus sericeus, Leptochloa virgata, Nassella neesiana, Nierembergia linariaefolia, Panicum bergii, Paspalum notatum</i>, among many others. Included in the macrogroup are similar treed savannas growing in the well-drained, sandy paleochannels of the Pilcomayo River in the Chaco region of Paraguay and Argentina. Typical tree species of this community are <i>Schinopsis heterophylla, Jacaranda cuspidifolia, Astronium fraxinifolium</i>, and <i>Acacia aroma</i>.
Accession Code:
urn:lsid:vegbank.org:commConcept:41010-{46DB12D2-0EBA-4C04-B7F5-F576A8D9782D}
Plot-observations of this Community Concept:
0
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