Quercus parvula is an evergreen red oak (Series Agrifoliae, Section Lobatae, Series Agrifoliae) found on north-facing Santa Cruz Island slopes and in the California Coast Ranges from Santa Barbara County north to Mendocino County. It was taxonomically combined with Quercus wislizeni until resurrected as a separate species by Kevin Nixon in 1980. The type locality of Q. parvula var. shrevei (originally described by C.H. Muller as Q. shreve
Quercus parvula shrevei is a variety of plants with 194 observations
Quercus parvula parvula is a variety of plants with 11 observations
Quercus parvula tamalpaisensis is a variety of plants with 8 observations