Quercus cornelius-mulleri

{{Short description|Species of tree}}

{{speciesbox

| name = Muller's oak

| image = Muller oak (Quercus cornelius-mulleri); Barker Dam Trail.jpg

| status = LC

| status_system = IUCN3.1

| status_ref = {{cite iucn |author=Kenny, L. |author2=Wenzell, K. |date=2015 |title=Quercus cornelius-mulleri |volume=2015 |page=e.T78811580A78811590 |doi=10.2305/IUCN.UK.2015-4.RLTS.T78811580A78811590.en |access-date=12 November 2021}}

| status2 = G4

| status2_system = TNC

| status2_ref = {{cite web |title=NatureServe Explorer 2.0 |url=https://explorer.natureserve.org/Taxon/ELEMENT_GLOBAL.2.142784/Quercus_cornelius-mulleri |website=explorer.natureserve.org |access-date=31 March 2022}}

| genus = Quercus

| display_parents = 2

| parent = Quercus sect. Quercus

| species = cornelius-mulleri

| authority = Nixon & K.P.Steele

}}

File:Quercus cornelius-mulleri acorns..jpg

Quercus cornelius-mulleri is a North American species of oak known by the common name Muller oak, or Muller's oak. It was described to science in 1981 when it was segregated from the Quercus dumosa complex and found to warrant species status of its own.Nixon, K. C. and K. P. Steele. (1981). A new species of Quercus (Fagacaeae) from Southern California. Madroño 28 210.{{ThePlantList |id=kew-172316 |taxon=Quercus cornelius-mulleri |authority=Nixon & K.P.Steele |access-date=27 December 2017}}{{IPNI |id=215727-2 |taxon=Quercus cornelius-mulleri |authority=Nixon & K.P.Steele |access-date=27 December 2017}} It was named after ecologist Cornelius Herman Muller. It is native to southern California and Baja California, where it grows in chaparral, oak woodlands, and other habitat in foothills and mountains. It can most easily be observed in Joshua Tree National Park and in the woodlands along the western margins of the Colorado Desert in San Diego County, California.Nixon, K. C. (2002). [http://danr.ucop.edu/ihrmp/proceed/nixon.pdf The Oak Biodiversity of California and Adjacent Regions.] {{webarchive |url=https://web.archive.org/web/20100619092652/http://danr.ucop.edu/ihrmp/proceed/nixon.pdf |date=June 19, 2010 }} US Forest Service Gen. Tech. Report{{Calflora|Quercus cornelius-mulleri |id=6989}}