From Wikipedia, the free encyclopedia
Rubiales was an order of flowering plants in the Cronquist system, including the families Rubiaceae and Theligonaceae. The latest APG system (2009) does not recognize this order and places the families within Gentianales. 
- Angiosperm Phylogeny Group. 2009. "An update of the Angiosperm Phylogeny Group classification for the orders and families of flowering plants: APG III". Botanical Journal of the Linnean Society 161(2): 105–121.