Quercus ×calvescens nothosubsp. costae (C.Vicioso) Rivas Mart. & Sáenz de Rivas
Full name:
Quercus ×calvescens nothosubsp. costae (C.Vicioso) Rivas Mart. & Sáenz de Rivas, Rivasgodaya 6: 108. 1991 is a synonym of Quercus ×streimii Heuff., Z. Natur.-Heilk. Ungarn, 1(13): 97 (1850).
Infrageneric Classification:
Subgenus Quercus, Section Quercus