What is "picrosia"

Picrosia is a genus of South American plants in the dandelion tribe within the daisy family.

1. Picrosia cabreriana A.G.Schulz - Brazil ( Paraná, Rio Grande do Sul, Santa Catarina), Paraguay ( Amambay), Argentina ( Chaco, Corrientes, Misiones)
2. Picrosia longifolia D.Don - northern + southern Argentina, Chile ( Tarapaca), Paraguay ( Alto Paraguay, Central, Presudente Hayes, San Pedro), Uruguay ( Montevideo), Peru ( Lima), Brazil ( Rio Grande do Sul, Santa Catarina)