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Kurtziana

versión On-line ISSN 1852-5962

Resumen

GIORGIS, Melisa A et al. Floristic composition of the Chaco Serrano Woodland in Córdoba province, Argentina. Kurtziana [online]. 2011, vol.36, n.1, pp. 9-43. ISSN 1852-5962.

The Chaco Serrano constitutes one of the main phytogeographic units of Córdoba province; however, available floristic information is limited and restricted. In this contribution we characterize the floristic composition of the Chaco Serrano between 400 and 1700 m a.s.l. We performed 437 comprehensive floristic samples of vascular plants in homogeneous quadrates of 20 × 20 m. A total of 106 families, 476 genera and 896 vascular plants species were recorded. Poaceae (157) and Asteraceae (143) are the best represented families while Baccharis, Eupatorium, Euphorbia, Gymnocalycium and Tillandsia are the genera with the highest number of species. Perennial evergreen herbs (221), graminoids (143) and shrubs (124) are the life forms with the highest number of species. We recorded 27 native trees species and 102 (11% of the total recorded species) alien species, 29 of them were woody. Approximately half of the species previously reported for the whole Córdoba province were recorded in this phytogeographic unit. Additionally, we provide six new records for Córdoba. These findings highlight the importance of the Chaco Serrano phytogeographic unit for the conservation of Córdoba flora.

Palabras llave : Distrito Chaqueño Serrano; Native species; Alien species; New records; Life forms; Conservation.

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