Viura
Viura is a synonym for Macabeo and is the most widely planted white grape variety in Rioja. It is a fairly straightforward grape to cultivate, although it is susceptible to disease and in particular to downy mildew and grey rot. It is a generous-yielding grape and in Rioja it tends to be blended with approximately 5% Malvasia to produce classic white Riojas. In Rioja Alvesa it is often blended with Tempranillo to produce high quality Red Riojas.