Quercus john-tuckeri
{{Short description|Species of oak tree}}
{{speciesbox
| name = Tucker's oak
| image = Quercus john-tuckeri - hungry valley, old ridge route.jpg
| status = LC
| status_system = IUCN3.1
| genus = Quercus
| display_parents = 2
| parent = Quercus sect. Quercus
| species = john-tuckeri
| authority = Nixon & C.H.Mull.
| synonyms_ref = {{ThePlantList |id=kew-173406 |taxon=Quercus john-tuckeri |authority=Nixon & C.H.Müll.}}
| synonyms =
- Quercus turbinella subsp. californica Tucker
- Quercus turbinella var. californica (Tucker) L.D.Benson
}}
Quercus john-tuckeri is a North American species of oak known by the common name Tucker oak, or Tucker's oak.Nixon, K. C. and C. H. Muller. (1994). New names in California oaks. Novon 4:4 391-93. It is endemic to California, where it grows in the chaparral and oak woodlands of mountain slopes in the western Transverse Ranges, the southernmost Central Coast Ranges, and the margins of the Mojave Desert.{{Calflora|Quercus john-tuckeri}} The species is named after John M. Tucker, professor of botany (1947–1986) at the University of California at Davis, specialist in Quercus.
Description
Quercus john-tuckeri is a bushy shrub growing up to {{Convert|2 to 5|m|ft|abbr=off|sp=us|frac=2}} in height, sometimes becoming treelike, exceeding 6 m (20 ft). The branches are gray or brown, the twigs coated in short woolly fibers when new and becoming scaly with age. The evergreen leaves are leathery and thick, sometimes brittle. They are gray-green, the lower surface slightly paler. The undersides are hairy, the upper surfaces somewhat less so. The leaf blade is roughly oval, spine-toothed, and less than {{Convert|4|cm|abbr=off|sp=us|frac=4}} long. The fruit is an acorn with a thin cap {{Convert|1 to 1.5|cm|abbr=on|frac=8}} wide and a nut {{Convert|2 to 3|cm|abbr=on|frac=8}} long.{{eFloras|1|233501051|Quercus john-tuckeri |first=Kevin C. |last=Nixon |volume=3}}
See also
References
{{Reflist}}
External links
- {{Jepson Manual |id=4316,4326,4344 |link=1}}
- {{CalPhotos|Quercus|john-tuckeri}}
{{Taxonbar|from=Q4112164}}
Category:Endemic flora of California
Category:Natural history of the California chaparral and woodlands
Category:Natural history of the California Coast Ranges
Category:Natural history of the Mojave Desert
Category:Natural history of the Santa Monica Mountains
Category:Natural history of the Transverse Ranges
Category:Plants described in 1952
{{Quercus-stub}}