Oriastrum

Oriastrum is a genus of plants in the family Asteraceae, found in western South America (northwest Argentina, Bolivia, Chile, and Peru). It is placed in the tribe Mutisieae.

Species
, Plants of the World Online accepted the following species:
 * Oriastrum acerosum (J.Rémy) Phil.
 * Oriastrum achenohirsutum (Tombesi) A.M.R.Davies
 * Oriastrum apiculatum (J.Rémy) A.M.R.Davies
 * Oriastrum dioicum (J.Rémy) Phil.
 * Oriastrum famatinae A.M.R.Davies
 * Oriastrum gnaphalioides Wedd.
 * Oriastrum lycopodioides Wedd.
 * Oriastrum minutum (Phil.) Nicola, S.E.Freire & Ariza
 * Oriastrum pentacaenoides Phil.
 * Oriastrum polymallum Phil.
 * Oriastrum pulvinatum Phil.
 * Oriastrum pusillum Poepp.
 * Oriastrum revolutum (Phil.) A.M.R.Davies
 * Oriastrum stuebelii (Hieron.) A.M.R.Davies
 * Oriastrum tarapacensis A.M.R.Davies
 * Oriastrum tontalensis A.M.R.Davies
 * Oriastrum werdermannii A.M.R.Davies