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A família Asteraceae no Parque Estadual de Itapuã, Viamão, Rio Grande do Sul, Brasil

2008; UNIVERSIDADE FEDERAL DO RIO GRANDE DO SUL; Volume: 6; Issue: 3 Linguagem: Inglês

1679-2343

Mariane Elis Beretta, Ana Cláudia Fernandes, Ângelo Alberto Schneider, Mara Rejane Ritter,

Phytochemistry Medicinal Plant Applications

The Parque Estadual de Itapua, situated in the municipal district of Viamao, a important preservation area of Rio Grande do Sul state by sheltering remainders of original vegetation. The Asteraceae family presented a large number of species and wide distribution, principally in grassland habitat. The aim of this work is to register the Asteraceae species which occurrence in the study area, thus contributing for the better knowledge of this family. For this, a bibliographic and regional herbarium revision was realized involving others studies previously accomplished in Itapua Park. Habit, habitats and phenology data ware registered for every species. We encountered 163 species, allotted in 13 tribes. The more numerous tribes were Astereae (36 species) and Eupatorieae (32 species). The collected examples flourish and fructify mostly in spring (51%) and autumn (46%). The large number of the species found, begin six menaced of extinction, denoted the importance this Conservation Unit to Rio Grande do Sul state.