View source for Quercus gravesii

{{Treatment/ID
|accepted_name=Quercus gravesii
|accepted_authority=Sudworth
|publications={{Treatment/Publication
|title=Check List For. Trees U.S.,
|place=86. 1927
|year=1927
}}
|common_names=Graves oak;Chisos red oak
|special_status={{Treatment/ID/Special_status
|code=F
|label=Selected by author to be illustrated
}}
|basionyms=
|synonyms={{Treatment/ID/Synonym
|name=Species
|authority=(Sargent) C. H. Muller
}}{{Treatment/ID/Synonym
|name=Variety
|authority=(Torrey) Shinners
}}{{Treatment/ID/Synonym
|name=Species
|authority=(Sargent) Parks ex Cory
}}{{Treatment/ID/Synonym
|name=Variety
|authority=Sargent
}}{{Treatment/ID/Synonym
|name=Variety
|authority=Sargent
}}
|hierarchy=Fagaceae;Quercus;Quercus sect. Lobatae;Quercus gravesii
|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. Lobatae]]</div><div class="higher-taxon"><small>species</small>[[Quercus gravesii]]</div></div>
|volume=Volume 3
|mention_page=
|treatment_page=
}}<!--

--><span class="statement" id="st-d0_s0" data-properties="tree duration;tree some measurement"><b>Trees,</b> deciduous, to 13 m.</span> <span class="statement" id="st-d0_s1" data-properties="bark coloration;bark architecture"><b>Bark </b>black, roughly furrowed.</span> <span class="statement" id="st-d0_s2" data-properties="twig coloration;twig coloration;twig coloration;twig diameter;twig diameter;twig pubescence;twig pubescence"><b>Twigs </b>light-brown to dark reddish-brown, (1-) 1.5-2.5 mm diam., glabrous or glabrate.</span> <span class="statement" id="st-d0_s3" data-properties="terminal bud coloration;terminal bud coloration;terminal bud shape;terminal bud shape;terminal bud shape;terminal bud shape;terminal bud some measurement;terminal bud pubescence;terminal bud pubescence"><b>Terminal </b>buds brown or reddish-brown, ovoid or ellipsoid to subconic, 2-5 mm, glabrous or with tuft of hairs at apex.</span> <span class="statement" id="st-d0_s4" data-properties="petiole some measurement;petiole pubescence"><b>Leaves:</b> petiole 5-25 mm, glabrate.</span> <span class="statement" id="st-d0_s5" data-properties="leaf-blade shape;leaf-blade shape;leaf-blade shape;leaf-blade length;leaf-blade width;base shape;base shape;base shape;base shape;lobe quantity;lobe shape;lobe quantity;apex shape;apex shape;apex shape;apex shape;apex shape"><b>Leaf-</b>blade ovate to elliptic, 45-140 × 20-120 mm, base rounded (rarely subcordate) to obtuse or cuneate, margins with 3-5 acute lobes, 9-20 awns, apex broadly obtuse or acute to attenuate, occasionally falcate;</span> <span class="statement" id="st-d0_s6" data-properties="surface coloration;surface coloration;surface pubescence;surface reflectance;surface reflectance;surface pubescence;axillary tuft size;midrib pubescence;vein pubescence;base arrangement;base character">surfaces abaxially light green or coppery green, glabrous with small axillary tufts of tomentum or pubescent along midrib and veins, adaxially shiny or glossy, glabrous except for scattered pubescence near base and along midrib.</span> <span class="statement" id="st-d0_s7" data-properties="acorn duration"><b>Acorns </b>biennial;</span> <span class="statement" id="st-d0_s8" data-properties="cup shape;cup shape;cup width;cup width;nut quantity;outer surface pubescence;inner surface pubescence;inner surface pubescence;inner surface pubescence;scale tip fixation or orientation;scale tip some measurement;scale tip shape">cup turbinate or deeply cupshaped, 4.5-8.5 mm high × 7.5-12 mm wide, covering 1/3-1/2 nut, outer surface glabrate, inner surface glabrous to pubescent on inner 2/3, scale tips appressed, less than 4 mm, acute;</span> <span class="statement" id="st-d0_s9" data-properties="nut shape;nut shape;nut shape;nut shape;nut shape;nut shape;nut shape;nut shape;nut shape;nut shape;nut length;nut width;nut pubescence;nut pubescence;nut pubescence;nut pubescence;scar diam">nut ovoid to ellipsoid, rarely subglobose or oblong, 9-16 × 5.5-11 mm, occasionally striate, glabrous to puberulent, especially at apex, scar diam. 3-6 mm.</span><!--

-->{{Treatment/Body
|phenology=Flowering spring.
|habitat=Davis, Glass, and Chisos mountains
|elevation=above 1200 m
|distribution=Tex.;n Mexico
|discussion=<p>Quercus gravesii reportedly hybridizes with Q. hypoleucoides. As noted above, forms of Q. gravesii and Q. robusta are easily confused and give the impression of belonging to a single morphologic continuum.</p><!--
--><p>Some authors have also used the name Quercus texana for Q. gravesii.</p>
|tables=
|references=
}}<!--

--><!--

-->{{#Taxon:
name=Quercus gravesii
|author=
|authority=Sudworth
|rank=species
|parent rank=section
|synonyms=Species;Variety;Species;Variety;Variety
|basionyms=
|family=Fagaceae
|phenology=Flowering spring.
|habitat=Davis, Glass, and Chisos mountains
|elevation=above 1200 m
|distribution=Tex.;n Mexico
|reference=None
|publication title=Check List For. Trees U.S.,
|publication year=1927
|special status=Selected by author to be illustrated
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/287ef3db526bd807d435a3c7423ef2df1e951227/V3/V3_132.xml
|genus=Quercus
|section=Quercus sect. Lobatae
|species=Quercus gravesii
|acorn duration=biennial
|apex shape=falcate;acute;attenuate
|axillary tuft size=small
|bark architecture=furrowed
|bark coloration=black
|base arrangement=scattered
|base character=pubescence
|base shape=rounded;obtuse or cuneate
|cup shape=cup-shaped;turbinate
|cup width=×7.5-12;4.5mm;8.5mm
|inner surface pubescence=glabrous;pubescent
|leaf-blade length=45mm;140mm
|leaf-blade shape=ovate;elliptic
|leaf-blade width=20mm;120mm
|lobe quantity=9;20
|lobe shape=acute
|midrib pubescence=pubescent
|nut length=9mm;16mm
|nut pubescence=glabrous;puberulent
|nut quantity=1/3;1/2
|nut shape=ovoid;ellipsoid rarely subglobose or oblong
|nut width=5.5mm;11mm
|outer surface pubescence=glabrate
|petiole pubescence=glabrate
|petiole some measurement=5mm;25mm
|scale tip fixation or orientation=appressed
|scale tip shape=acute
|scale tip some measurement=0mm;4mm
|scar diam=3mm;6mm
|surface coloration=coppery green;light green
|surface pubescence=glabrous;glabrous
|surface reflectance=glossy;shiny
|terminal bud coloration=reddish-brown;brown
|terminal bud pubescence=with tuft;glabrous
|terminal bud shape=ellipsoid;subconic
|terminal bud some measurement=2mm;5mm
|tree duration=deciduous
|tree some measurement=0m;13m
|twig coloration=light-brown;dark reddish-brown
|twig diameter=1.5mm;2.5mm
|twig pubescence=glabrate;glabrous
|vein pubescence=pubescent
}}<!--

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