Plant Geography of Western La Alcarria and “Mesa” of Ocaña (III). Provenance analysis of five representative space tracts

Abstract

Biological spectra analysis initiated in previous papers (García-Abad, 2009 and 2011, Parts I and II) is continued here. Floristic inventories are carried out during one agricultural year (2002-03) in five 1 km²- U.T.M. grid squares. These space tracts form a representative transect in Western La Alcarria and “Mesa” of Ocaña (AM). This Part III is about the biogeographical spectrum. We discriminate between native and no-native plants and analyze their provenance. In turn, Sanz et al. (2004) criteria were designed to discriminate between invasive alien and no-invasive alien plants. Since the both spaces are nested, locally determinated spectra could be related to the spectra of AM region. Finally, we present a provisional checklist of alien plants of AM.