Symphyotrichum graminifolium

Symphyotrichum graminifolium (formerly Conyza graminifolia and Aster cabrerae) is a species of flowering plant in the family Asteraceae native to the South American countries of Argentina, Bolivia, Brazil, Paraguay, and Uruguay. It is a perennial, herbaceous plant that grows to 1.5 m tall. Its numerous flowers are in broad corymbiform arrays with lilac or bluish ray florets.