View source for Quercus ajoensis

{{Treatment/ID
|accepted_name=Quercus ajoensis
|accepted_authority=C. H. Muller
|publications={{Treatment/Publication
|title=Madroño
|place=12: 140. 1954
|year=1954
}}
|common_names=Ajo Mountain scrub oak
|special_status={{Treatment/ID/Special_status
|code=F
|label=Illustrated
}}
|basionyms=
|synonyms={{Treatment/ID/Synonym
|name=Quercus turbinella subsp. ajoensis
|authority=(C. H. Muller) Felger & C. H. Lowe
|rank=subspecies
}} {{Treatment/ID/Synonym
|name=Quercus turbinella var. ajoensis
|authority=(C. H. Muller) Little
|rank=variety
}}
|hierarchy=Fagaceae;Quercus;Quercus sect. Quercus;Quercus ajoensis
|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 ajoensis]]</div></div>
|volume=Volume 3
|mention_page=
|treatment_page=
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Shrubs,</b> rarely trees, evergreen, to 2-3 m. <b>Bark</b> gray, scaly or furrowed. <b>Twigs</b> light brown, 1-2 mm diam., inconspicuously short stellate-pubescent or glabrate. <b>Buds</b> brown or reddish brown, ovoid or globose, 1-1.5 mm, variously short stellate-pubescent, tomentose, or glabrate. <b>Leaves</b>: petiole (2-)3-4 m. <b>Leaf</b> blade ovate to narrowly ovate or oblong, (10-)15-35(-50) × (5-)10-20(-30) mm, rather leathery, base cordate, rarely rounded, margins crispate, sometimes flat, cartilaginous, with 4-6(-8) long-attenuate, spinose-awned teeth on each side, secondary veins 5-8 on each side, whitish, apex acute or obtuse with bristly distal teeth; surfaces abaxially blue-green, waxy-glaucous, microscopically papillose, glabrous, sometimes sparsely stellate-pubescent along midrib, adaxially blue-green, glaucous, glabrous or sparingly stellate-pubescent along midrib, secondary veins raised on both surfaces. <b>Acorns</b> solitary or paired on thin axillary peduncle (5-)30-50 mm; cup shallowly cup-shaped, thin, 3-4 mm deep × 6-8(-10) mm wide, enclosing only base of nut, scales brownish, moderately tuberculate, pubescent; nut oblong to narrowly ovoid, 12-15 × 5-8 mm. <b>Cotyledons</b> distinct.</span><!--

-->{{Treatment/Body
|phenology=Flowering in spring.
|habitat=Rare to locally abundant on igneous slopes
|elevation=500-1500 m
|distribution=Ariz.;Mexico (Baja California).
|discussion=<p>Populations of <i>Quercus ajoensis</i> in southern New Mexico show characteristics suggesting introgression from hybridization with <i>Quercus toumeyi</i>, such as increased twig and leaf pubescence and sometimes the prominent golden puberulum of the abaxial leaf surfaces. Hybrids between <i>Q. ajoensis</i> and both <i>Q. turbinella</i> and <i>Q. gambelii</i> (Utah) are also known.</p>
|tables=
|references=
}}<!--

--><!--

-->{{#Taxon:
name=Quercus ajoensis
|authority=C. H. Muller
|rank=species
|parent rank=section
|synonyms=Quercus turbinella subsp. ajoensis;Quercus turbinella var. ajoensis
|basionyms=
|family=Fagaceae
|phenology=Flowering in spring.
|habitat=Rare to locally abundant on igneous slopes
|elevation=500-1500 m
|distribution=Ariz.;Mexico (Baja California).
|reference=None
|publication title=Madroño
|publication year=1954
|special status=Illustrated
|source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-data-curation.git/src/bb6b7e3a7de7d3b7888a1ad48c7fd8f5c722d8d6/coarse_grained_fna_xml/V3/V3_107.xml
|genus=Quercus
|section=Quercus sect. Quercus
|species=Quercus ajoensis
}}<!--

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