Stillingia salpingadenia

Stillingia salpingadenia is a species of flowering plant in the family Euphorbiaceae. It is native to northeast Argentina, Bolivia, west-central Brazil, and Paraguay.
It was originally described by Johannes Müller Argoviensis as "Sapium salpingadenia" in 1863 and moved to the genus "Stillingia" by Jacques Huber in 1906.