https://www.vivc.de/index.php?r=passport%2Fview&id=3525
Derechero de Muniesa is the name of this pre-phylloxera grape variety, autochthonous and unique from Aragón. It is grown exclusively in Muniesa, at an altitude of 800 meters, in the region of Teruel. It is a late budding variety that reaches maturity in the last weeks of October.Pre-phylloxera variety.(https://mcusercontent.com/f63ff2b60b2aa348ee45c3daf/files/8676f004-6f8b-a058-d81b-bb93badcdcca/Profile_Tasting_Derechero.pdf)