Darwiniana, nueva serie
versión impresa ISSN 0011-6793
Hieracium x stoloniflorum, native from central Europe and northwestern Russia and reported as a putative hybrid between H. aurantiacum and H. pilosella, is first documented for the Argentinian flora. This paper describes this weed and informs about its presence in Río Negro province.
Palabras clave : Argentinian flora; Asteraceae; Exotic flora; Hieracium; Weed.