Other Bordeaux AOCs that permit the usage of Merlot blanc in their designated white wines include Bordeaux-Haut-Benauge (maximum harvest yield of 50 hl/ha), Côtes de Bourg (but not the Côtes de Blaye) and Entre-Deux-Mers (which like the Côtes de Bourg limits harvest yield to 60 hl/ha). In all these AOCs Merlot blanc plays a supporting role to Semillon, Sauvignon blanc and Muscadelle. Over the years Merlot blanc has been known under a variety of synonyms including: Merlau blanc, Merlaut blanc and Merlot bianco.