Quercus × morehus

Quercus × morehus,^[3] Abram's oak in Kellogg's original description^[4] (later called oracle oak by Jepson^[5]), is a named hybrid between the red oaks Quercus kelloggii (California black oak) and Quercus wislizeni (interior live oak).^[6] Originally published as the unique species Quercus morehus by Kellogg ^[4] rather than as the hybrid it is called today ^[6] this tree is found in the US states of California and possibly southern Oregon,^[7] usually where the territories of the purported parents overlap.^[3]

Quercus × morehus
Quercus morehus Kellogg[1]
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Clade:	Rosids
Order:	Fagales
Family:	Fagaceae
Genus:	Quercus
Section:	Quercus sect. Lobatae
Species:	Q. × morehus
Binomial name
Quercus × morehus Kellogg[2]
Synonyms[2]
Quercus ×moreha Trel.

Because the name Q. × morehus was adopted before 1980, while Q. wislizeni and Quercus parvula were still considered conspecific^[8] it is often applied not only to trees appearing intermediate in form between Q. kelloggii and Q. wislizeni but also to those that could be Q. kelloggii × Q. parvula. Pending formal description, the name Q. × ‘wootteni’ (Wootten's oak) has been proposed for the California black oak (Q. kelloggii) × Shreve oak (Q. parvula var. shrevei) hybrid.^[9]

Quercus × morehus is a hybrid between a deciduous oak and an evergreen oak. Leaves are generally deciduous or partially deciduous and intermediate in form between Q. kelloggii and Q. wislizeni.^[3]