Biology:Quercus john-tuckeri
| Tucker's oak | |
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Scientific classification 
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| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Rosids |
| Order: | Fagales |
| Family: | Fagaceae |
| Genus: | Quercus |
| Subgenus: | Quercus subg. Quercus |
| Section: | Quercus sect. Quercus |
| Species: | Q. john-tuckeri
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| Binomial name | |
| Quercus john-tuckeri Nixon & C.H.Mull.
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| Synonyms[2] | |
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Quercus john-tuckeri is a North American species of oak known by the common name Tucker oak, or Tucker's oak.[3] 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.[4] The species is named after John M. Tucker, professor of botany (1947–1986) at the University of California at Davis, specialist in Quercus. [3]
Description
Quercus john-tuckeri is a bushy shrub growing up to 2 to 5 meters (6 1⁄2 to 16 1⁄2 feet) 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 4 centimeters (1 1⁄2 inches) long. The fruit is an acorn with a thin cap 1 to 1.5 cm (3⁄8 to 5⁄8 in) wide and a nut 2 to 3 cm (3⁄4 to 1 1⁄8 in) long.[5]
See also
References
- ↑ Jerome, D. (2020). "Quercus john-tuckeri". IUCN Red List of Threatened Species 2020: e.T86583133A171682361. doi:10.2305/IUCN.UK.2020-2.RLTS.T86583133A171682361.en. https://www.iucnredlist.org/species/86583133/171682361. Retrieved 12 November 2021.
- ↑ "Quercus john-tuckeri Nixon & C.H.Müll.". World Checklist of Selected Plant Families (WCSP). Royal Botanic Gardens (Kew). http://www.theplantlist.org/tpl1.1/record/kew-173406.
- ↑ 3.0 3.1 Nixon, K. C. and C. H. Muller. (1994). New names in California oaks. Novon 4:4 391-93.
- ↑ "Quercus john-tuckeri", Calflora: Information on California plants for education, research and conservation, with data contributed by public and private institutions and individuals, including the Consortium of California Herbaria, Berkeley, California: The Calflora Database, https://www.calflora.org/cgi-bin/species_query.cgi?where-taxon=Quercus+john-tuckeri
- ↑ Nixon, Kevin C. (1997), "Quercus john-tuckeri", in Flora of North America Editorial Committee, Flora of North America North of Mexico (FNA), 3, New York and Oxford, http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=233501051
External links
Wikidata ☰ Q4112164 entry
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