View source for Quercus gambelii

{{Treatment/ID
|accepted_name=Quercus gambelii
|accepted_authority=Nuttall
|publications={{Treatment/Publication
|title=J. Acad. Nat. Sci. Philadelphia
|place=1(2): 179. 1848
|year=1848
}}
|common_names=Gambel oak
|special_status={{Treatment/ID/Special_status
|code=F
|label=Illustrated
}}{{Treatment/ID/Special_status
|code=W
|label=Weedy
}}
|basionyms=
|synonyms={{Treatment/ID/Synonym
|name=Quercus douglasii var. gambelii
|authority=(Nuttall) A. de Candolle
|rank=variety
}} {{Treatment/ID/Synonym
|name=Quercus gambelii var. gunnisonii
|authority=Wenzig
|rank=variety
}} {{Treatment/ID/Synonym
|name=Quercus lesueuri
|authority=C. H. Muller
|rank=species
}} {{Treatment/ID/Synonym
|name=Quercus marshii
|authority=Rydberg
|rank=species
}} {{Treatment/ID/Synonym
|name=Quercus novomexicana
|authority=Torrey
|rank=species
}} {{Treatment/ID/Synonym
|name=Quercus undulata var. gambelii
|authority=(Nuttall) Engelmann
|rank=variety
}} {{Treatment/ID/Synonym
|name=Quercus utahensis
|authority=
|rank=species
}}
|hierarchy=Fagaceae;Quercus;Quercus sect. Quercus;Quercus gambelii
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Fagaceae]]</div><div class="higher-taxon"><small>genus</small>[[Quercus]]</div><div class="higher-taxon"><small>section</small>[[Quercus sect. Quercus]]</div><div class="higher-taxon"><small>species</small>[[Quercus gambelii]]</div></div>
|volume=Volume 3
|mention_page=
|treatment_page=
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Shrubs </b>or trees, deciduous, shrubs sometimes clumped and spreading, trees small or moderately large. <b>Bark</b> gray or brown, scaly. <b>Twigs</b> brown or reddish brown with few, inconspicuous lenticels, 1.5-2.5 mm diam., glabrous or stellate-pubescent. <b>Buds</b> brown, ovoid, ca. 3 mm, apex acute or obtuse, sparsely pubescent, becoming glabrate. <b>Leaves</b>: petiole 10-20 mm. <b>Leaf</b> blade elliptic to obovate or oblong, deeply to shallowly 4-6-lobed, (40-)80-120(-160) × (25-)40-60(-100) mm, membranous, base truncate to cuneate, margins entire or coarsely toothed, lobes oblong, rounded or subacute, sinuses acute or narrowly rounded at base, reaching more than 1/2 distance to midrib, secondary veins 4-6 on each side, each passing into lobe, branched, apex broadly rounded; surfaces abaxially dull green, sometimes glaucous, densely velvety with erect 4-6-rayed hairs, sometimes glabrate or persistently villous only near midribs, secondary veins prominent, adaxially lustrous dark green, appearing glabrate, microscopically pubescent, secondary veins slightly raised. <b>Acorns</b> solitary or paired, subsessile or on peduncle to 10(-30) mm; cup deeply cup-shaped, 5-8(-17) mm deep × 7-15(-25) mm wide, enclosing 1/4-1/2 nut, base round, margin thin, scales closely appressed, ovate, markedly tuberculate, proximally gray-tomentulose; nut light brown, ovoid to ellipsoid, (8-)12-15(-33) × 7-12(-18) mm. <b>Cotyledons</b> distinct.</span><!--

-->{{Treatment/Body
|phenology=Flowering mid-late spring.
|habitat=Montane conifer, oak-maple, and higher margins of pinyon-juniper woodlands
|elevation=1000-3030 m
|distribution=Ariz.;Colo.;Nev.;N.Mex.;Okla.;Tex.;Utah;Wyo.;Mexico (Chihuahua;Coahuila;and Sonora).
|discussion=<p>Numerous hybrids of <i>Quercus gambelii</i> with various scrub oaks have been reported, including <i>Q. grisea</i> and <i>Q. turbinella</i>. Such hybrids in general have shallowly lobed or dentate, semipersistent leaves and intermediate characteristics of pubescence and fruit between parental types. Such hybrids are usually referred to as the <i>Quercus</i> ×undulata complex because of widespread application of the latter name to various populations.</p><!--
--><p>One population from San Juan County, Utah, with larger fruit but otherwise not differing from typical <i>Quercus gambelii</i>, has been recognized as <i>Q. gambelii</i> var. bonina Welsh. Unless other characters are found to support this segregation, the plants are best not treated as a formal taxon, particularly considering the extensive variation and hybridization associated with <i>Q. gambelii</i> throughout its range.</p><!--
--><p>Numerous putative hybrid swarms occur throughout the range of <i>Quercus gambelii</i> that involve a number of suspected parental species. Most of these populations have, at one time or another, been referred to <i>Quercus</i> undulata Torrey. The putative hybrids have serrate or shallowly lobed leaves and considerable variation in habit, leaf pubescence, and acorn morphology. J. M. Tucker (1961, 1969, 1971) and J. M. Tucker et al. (1961) have identified the major components of the Q. undulata complex as <i>Q. turbinella</i> (western Utah and northwestern Arizona, and central Colorado), <i>Q. grisea</i> (New Mexico and southern Colorado), <i>Q. havardii</i> (southeastern Utah and northwestern Arizona), <i>Q. mohriana</i> (northeastern and southern New Mexico), <i>Q. arizonica</i> (central Arizona), and Q. muhlenbergii (eastern and central New Mexico). <i>Quercus macrocarpa</i> has been implicated as a parent of variable populations in New Mexico (J. M. Tucker and J. R. Maze 1966). Because of the complex variability in these populations, no effort has been made to treat them separately here; indeed, it would be impossible to produce usable keys if these were included as formal taxa.</p><!--
--><p>Hybrids derived from <i>Quercus gambelii</i> and an evergreen species are often semideciduous, retaining a variable portion of green or brownish leaves over the winter.</p><!--
--><p><i>Quercus gambelii</i> was used medicinally by the Navaho-Ramah to alleviate postpartum pain, as a cathartic, as a ceremonial emetic, and as a life medicine (D. E. Moerman 1986).</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Quercus gambelii
|authority=Nuttall
|rank=species
|parent rank=section
|synonyms=Quercus douglasii var. gambelii;Quercus gambelii var. gunnisonii;Quercus lesueuri;Quercus marshii;Quercus novomexicana;Quercus undulata var. gambelii;Quercus utahensis
|basionyms=
|family=Fagaceae
|phenology=Flowering mid-late spring.
|habitat=Montane conifer, oak-maple, and higher margins of pinyon-juniper woodlands
|elevation=1000-3030 m
|distribution=Ariz.;Colo.;Nev.;N.Mex.;Okla.;Tex.;Utah;Wyo.;Mexico (Chihuahua;Coahuila;and Sonora).
|reference=None
|publication title=J. Acad. Nat. Sci. Philadelphia
|publication year=1848
|special status=Illustrated;Weedy
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f50eec43f223ca0e34566be0b046453a0960e173/coarse_grained_fna_xml/V3/V3_837.xml
|genus=Quercus
|section=Quercus sect. Quercus
|species=Quercus gambelii
}}<!--

-->[[Category:Treatment]][[Category:Quercus sect. Quercus]]