Quercus × alvordiana | |
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Scientific classification | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Angiosperms |
Clade: | Eudicots |
Clade: | Rosids |
Order: | Fagales |
Family: | Fagaceae |
Genus: | Quercus |
Species: | Q. × alvordiana
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Binomial name | |
Quercus × alvordiana | |
Synonyms [1] | |
Quercus dumosa var. alvordiana (Eastw.) Jeps. |
Quercus × alvordiana, the Alvord oak, is a hybrid oak in the genus Quercus. It has been reported to be a hybrid between Quercus douglasii and Quercus turbinella, [1] [2] or between Q. douglasii and Quercus john-tuckeri, [3] [4] which was formerly considered to be a variety of Q. turbinella. [5]
This is the most common hybrid of Q. douglasii.[ citation needed] It is endemic to California, where it occurs in the Southern Inner California Coast Ranges and western Transverse Ranges. [6]
Quercus × alvordiana is a shrub or tree under 3 metres (9.8 ft) tall which may be evergreen or deciduous.
The leaves are up to 5 centimeters long, a dull blue to gray-green on top and paler green on the undersides. The leaf blades have toothed edges and some have pointed tips.
The acorn is narrow in shape and up to 4 centimeters long, with a cup up to 1.6 centimeters wide. [4]