Vascular flora of Santa Fe province: Typhaceae

MCCARGO, J.C.; R. GARCÍA; D.E. PRADO

Rosario

Congreso; XXV Reunión Biología de Rosario; 2005

Sociedad de Biología de Rosario

The family Typhaceae comprises aquatic herbs belonging in only one cosmopolitan genus, Typha L., with about 15 species of all regions of the world. In Argentina the family Typhaceae includes three species distributed in wetlands all over the country except for southern Patagonia (Santa Cruz and Tierra del Fuego). The present work contributes to the knowledge of this family providing keys to the identification of different taxa based on morphological characters and a map of their ecological and geographical distribution. The methods consist of a thorough bibliographical review, consultation of national herbaria with important collections of the province (SF: Esperanza; SI: San Isidro; UNR: Rosario), field work experience of the authors and lab work to confirm their identity. As a preliminary result only two species of Typhaceae were found in Santa Fe: Typha domingensis Pers. y Typha latifolia L., both known as ‘totoras’, growing in shallow pond environments of all natural regions of the province (Chaco, Espinal, Pampa and Paraná River Valley). Taxonomic information, illustrations and a distribution map are provided.