What is "biebersteinia"

Biebersteinia is a genus containing four species of herbs in the flowering plant order Sapindales. They occur from East Mediterranean to West Siberia and Central Asia.

This genus was previously placed in Geraniaceae, but more recently, molecular phylogenetic studies have given it a basal position within Sapindales. In the APG III system and in the Kubitzki system, it is placed in its own monogeneric family, Biebersteiniaceae, one of the few herbaceous members of Sapindales (the others being found in Rutaceae).