Levantamento de espécies da família Asteraceae no município de São Gabriel, Rio Grande do Sul, Brasil.

Abstract

The Asteraceae family has a large number of species and a worldwide distribution, and in southern Brazil occurs in greater numbers in grasslands. This paper reports the occurrence of species of Asteraceae in the municipality of São Gabriel, which is allocated in the Pampa Biome. The species were surveyed through field trips, revision of the herbarium HBEI and Species Link website. We found 119 species, distributed in 66 genera and 19 tribes. The tribes with the highest number of species were Astereae (21 species), totaling 17.5% which represents, Eupatorieae (18 species) with 15.0% and Gnaphalieae (14 species) with 11.7%. Six species that were recorded in the municipality of São Gabriel are in the List of Endangered Species of the state of Rio Grande do Sul (Assembleia Legislativa, 2014), they are: Baccharis hyemalis Deble, Helenium radiatum(Less.)Seckt, Isostigma peucedanifolium (Spreng.) Less., Mikania dusenii B.L.Rob., Porophyllum linifolium (Ard.) DC. e Trichocline humilis Less. We presente popular names, habitat information and diagnostic characters for each species.