View source for Quercus ellipsoidalis

{{Treatment/ID
|accepted_name=Quercus ellipsoidalis
|accepted_authority=E. J. Hill
|publications={{Treatment/Publication
|title=Bot. Gaz.
|place=27: 204, plates 2, 3. 1899
|year=1899
}}
|common_names=Northern pin oak;jack oak;Hill's oak
|special_status={{Treatment/ID/Special_status
|code=E
|label=Endemic
}}{{Treatment/ID/Special_status
|code=F
|label=Selected by author to be illustrated
}}
|basionyms=
|synonyms={{Treatment/ID/Synonym
|name=Quercus ellipsoidalis var. kaposianensis
|authority=J. W. Moore
}}
|hierarchy=Fagaceae;Quercus;Quercus sect. Lobatae;Quercus ellipsoidalis
|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 ellipsoidalis]]</div></div>
|volume=Volume 3
|mention_page=
|treatment_page=
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Trees,</b> deciduous, to 20 m; lower trunk often with stubs of dead branches. <b>Bark</b> dark gray-brown, shallowly fissured, inner bark orangish. <b>Twigs</b> dark reddish brown, (1-)1.5-3 mm diam., glabrous. <b>Terminal</b> buds dark reddish brown, ovoid, 3-5 mm, often conspicuously 5-angled in cross section, usually silvery- or tawny-pubescent toward apex. <b>Leaves</b>: petiole 20-50 mm, glabrous. <b>Leaf</b> blade elliptic, 70-130 × 50-100 mm, base obtuse to truncate, margins with 5-7 deep lobes and 15-55 awns, lobes distally expanded, sinuses usually extending more than 1/2 distance to midrib, apex acute; surfaces abaxially glabrous except for minute axillary tufts of tomentum, adaxially glossy light green, glabrous, secondary veins raised on both surfaces. <b>Acorns</b> biennial; cup narrowly turbinate to deeply cup-shaped, 6-11 mm high × 10-19 mm wide, covering 1/3-1/2 nut, outer surface reddish brown, puberulent, inner surface light brown, glabrous, rarely with ring of pubescence around scar, scales with straight or slightly concave margins, tips tightly appressed, obtuse or acute; nut ellipsoid to ovoid, rarely subglobose, 10-20 × 9-15 mm, occasionally striate, glabrous, occasionally with 1 or more faint rings of fine pits at apex, scar diam. 4-8 mm.</span><!--

-->{{Treatment/Body
|phenology=Flowering spring.
|habitat=Dry sandy sites, rarely on moderately mesic slopes or uplands
|elevation=150-500 m
|distribution=Ont.;Ill.;Ind.;Iowa;Mich.;Minn.;Ohio;Wis.
|discussion=<p>In many treatments (e.g., E. G. Voss 1972+, vol. 2), <i>Quercus ellipsoidalis</i> is included in <i>Q. coccinea</i>. Variation in fruit morphology has led to recognition of several formae (W. Trelease 1919; see also R. J. Jensen 1986) and one variety (<i>Q. ellipsoidalis</i> var. kaposianensis, based on specimens from St. Paul, Minnesota, in which the cup tightly encloses the nut for two-thirds its length at maturity).</p><!--
--><p><i>Quercus ellipsoidalis</i> reportedly hybridizes with <i>Q. rubra</i> and <i>Q. velutina</i>.</p><!--
--><p>The Menominee used <i>Quercus ellipsoidalis</i> medicinally to treat suppressed menses caused by cold (D. E. Moerman 1986).</p>
|tables=
|references=
}}<!--

--><!--

-->{{#Taxon:
name=Quercus ellipsoidalis
|author=
|authority=E. J. Hill
|rank=species
|parent rank=section
|synonyms=Quercus ellipsoidalis var. kaposianensis
|basionyms=
|family=Fagaceae
|phenology=Flowering spring.
|habitat=Dry sandy sites, rarely on moderately mesic slopes or uplands
|elevation=150-500 m
|distribution=Ont.;Ill.;Ind.;Iowa;Mich.;Minn.;Ohio;Wis.
|reference=None
|publication title=Bot. Gaz.
|publication year=1899
|special status=Endemic;Selected by author to be illustrated
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/8f726806613d60c220dc4493de13607dd3150896/coarse_grained_fna_xml/V3/V3_256.xml
|genus=Quercus
|section=Quercus sect. Lobatae
|species=Quercus ellipsoidalis
}}<!--

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