Difference between revisions of "Quercus shumardii"
Proc. Acad. Nat. Sci. Philadelphia 12: 444. 1860.
Common names: Shumard oak
EndemicIllustrated
Synonyms: Quercus schneckii Britton
Treatment appears in FNA Volume 3.
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}}{{Treatment/ID/Special_status | }}{{Treatment/ID/Special_status | ||
|code=F | |code=F | ||
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|basionyms= | |basionyms= | ||
|synonyms={{Treatment/ID/Synonym | |synonyms={{Treatment/ID/Synonym | ||
| − | |name= | + | |name=Quercus schneckii |
|authority=Britton | |authority=Britton | ||
| + | |rank=species | ||
}} | }} | ||
|hierarchy=Fagaceae;Quercus;Quercus sect. Lobatae;Quercus shumardii | |hierarchy=Fagaceae;Quercus;Quercus sect. Lobatae;Quercus shumardii | ||
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| − | --><span class="statement" id="st- | + | --><span class="statement" id="st-undefined" data-properties=""><b>Trees,</b> deciduous, to 35 m. <b>Bark</b> gray-brown to dark brown, shallowly fissured with scaly or light-colored flat ridges, inner bark pinkish. <b>Twigs</b> gray to light brown, (1.5-)2-3.5(-4.5) mm diam., glabrous. <b>Terminal</b> buds gray to grayish brown, ovoid or broadly ellipsoid, 4-8 mm, often noticeably 5-angled in cross section, glabrous. <b>Leaves</b>: petiole 20-60 mm, glabrous. <b>Leaf</b> blade broadly elliptic to obovate, 100-200 × 60-150 mm, base obtuse to truncate, occasionally acute, margins with 5-9 lobes and 15-50 awns, lobes oblong or distally expanded, apex acute; surfaces abaxially glabrous except for prominent axillary tufts of tomentum, adaxially glossy, glabrous, secondary veins raised on both surfaces. <b>Acorns</b> biennial; cup saucer-shaped to cup-shaped, 7-12 mm high × 15-30 mm wide, covering 1/4-1/3 nut, outer surface glabrous or puberulent, inner surface light-brown to red-brown, glabrous or with ring of pubescence around scar, scales often with pale margins, tips tightly appressed, obtuse or acute; nut ovoid to oblong, occasionally subglobose, 14-30 × 10-20 mm, glabrous, scar diam. 6.5-12 mm.</span><!-- |
-->{{Treatment/Body | -->{{Treatment/Body | ||
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|elevation=0-500 m | |elevation=0-500 m | ||
|distribution=Ont.;Ala.;Ark.;Fla.;Ga.;Ill.;Ind.;Kans.;Ky.;La.;Md.;Mich.;Miss.;Mo.;Nebr.;N.C.;Ohio;Okla.;Pa.;S.C.;Tenn.;Tex.;Va.;W.Va. | |distribution=Ont.;Ala.;Ark.;Fla.;Ga.;Ill.;Ind.;Kans.;Ky.;La.;Md.;Mich.;Miss.;Mo.;Nebr.;N.C.;Ohio;Okla.;Pa.;S.C.;Tenn.;Tex.;Va.;W.Va. | ||
| − | |discussion=<p>Trees with shallow cups covering ca. one-fourth of the nut are treated as Quercus shumardii var. shumardii; those with more deeply rounded cups covering ca. one-third of the nut are treated as Q. shumardii var. schneckii (Britton) Sargent. Quercus shumardii var. stenocarpa Laughlin was described from several trees in Missouri and Illinois having ellipsoid acorns that were covered less than one-third their length by very small (5.5-7 mm high × 12.5-18 mm wide), shallow cups (K. Laughlin 1969).</p><!-- | + | |discussion=<p>Trees with shallow cups covering ca. one-fourth of the nut are treated as <i>Quercus shumardii</i> var. shumardii; those with more deeply rounded cups covering ca. one-third of the nut are treated as <i>Q. shumardii</i> var. schneckii (Britton) Sargent. <i>Quercus shumardii</i> var. stenocarpa Laughlin was described from several trees in Missouri and Illinois having ellipsoid acorns that were covered less than one-third their length by very small (5.5-7 mm high × 12.5-18 mm wide), shallow cups (K. Laughlin 1969).</p><!-- |
| − | --><p>Quercus shumardii reportedly hybridizes with Q. buckleyi, Q. falcata (= Q. ×joori Trelease), Q. hemisphaerica, Q. imbricaria (= Q. ×egglestoni Trelease), Q. laevis, Q. laurifolia, Q. marilandica, Q. nigra, Q. palustris (= Q. ×mutabilis E. J. Palmer & Steyermark), Q. phellos (= Q. ×moultonensis Ashe), Q. rubra, and Q. velutina (= Q. × discreta Laughlin).</p> | + | --><p><i>Quercus shumardii</i> reportedly hybridizes with <i>Q. buckleyi</i>, <i>Q. falcata</i> (= Q. ×joori Trelease), <i>Q. hemisphaerica</i>, <i>Q. imbricaria</i> (= Q. ×egglestoni Trelease), <i>Q. laevis</i>, <i>Q. laurifolia</i>, <i>Q. marilandica</i>, <i>Q. nigra</i>, <i>Q. palustris</i> (= Q. ×mutabilis E. J. Palmer & Steyermark), <i>Q. phellos</i> (= Q. ×moultonensis Ashe), <i>Q. rubra</i>, and <i>Q. velutina</i> (= Q. × discreta Laughlin).</p> |
|tables= | |tables= | ||
|references= | |references= | ||
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-->{{#Taxon: | -->{{#Taxon: | ||
name=Quercus shumardii | name=Quercus shumardii | ||
| − | |||
|authority=Buckley | |authority=Buckley | ||
|rank=species | |rank=species | ||
|parent rank=section | |parent rank=section | ||
| − | |synonyms= | + | |synonyms=Quercus schneckii |
|basionyms= | |basionyms= | ||
|family=Fagaceae | |family=Fagaceae | ||
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|publication title=Proc. Acad. Nat. Sci. Philadelphia | |publication title=Proc. Acad. Nat. Sci. Philadelphia | ||
|publication year=1860 | |publication year=1860 | ||
| − | |special status=Endemic; | + | |special status=Endemic;Illustrated |
| − | |source xml=https:// | + | |source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V3/V3_810.xml |
|genus=Quercus | |genus=Quercus | ||
|section=Quercus sect. Lobatae | |section=Quercus sect. Lobatae | ||
|species=Quercus shumardii | |species=Quercus shumardii | ||
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-->[[Category:Treatment]][[Category:Quercus sect. Lobatae]] | -->[[Category:Treatment]][[Category:Quercus sect. Lobatae]] | ||
Latest revision as of 22:51, 5 November 2020
Trees, deciduous, to 35 m. Bark gray-brown to dark brown, shallowly fissured with scaly or light-colored flat ridges, inner bark pinkish. Twigs gray to light brown, (1.5-)2-3.5(-4.5) mm diam., glabrous. Terminal buds gray to grayish brown, ovoid or broadly ellipsoid, 4-8 mm, often noticeably 5-angled in cross section, glabrous. Leaves: petiole 20-60 mm, glabrous. Leaf blade broadly elliptic to obovate, 100-200 × 60-150 mm, base obtuse to truncate, occasionally acute, margins with 5-9 lobes and 15-50 awns, lobes oblong or distally expanded, apex acute; surfaces abaxially glabrous except for prominent axillary tufts of tomentum, adaxially glossy, glabrous, secondary veins raised on both surfaces. Acorns biennial; cup saucer-shaped to cup-shaped, 7-12 mm high × 15-30 mm wide, covering 1/4-1/3 nut, outer surface glabrous or puberulent, inner surface light-brown to red-brown, glabrous or with ring of pubescence around scar, scales often with pale margins, tips tightly appressed, obtuse or acute; nut ovoid to oblong, occasionally subglobose, 14-30 × 10-20 mm, glabrous, scar diam. 6.5-12 mm.
Phenology: Flowering spring.
Habitat: Mesic slopes and bottoms, stream banks and poorly drained uplands
Elevation: 0-500 m
Distribution
Ont., Ala., Ark., Fla., Ga., Ill., Ind., Kans., Ky., La., Md., Mich., Miss., Mo., Nebr., N.C., Ohio, Okla., Pa., S.C., Tenn., Tex., Va., W.Va.
Discussion
Trees with shallow cups covering ca. one-fourth of the nut are treated as Quercus shumardii var. shumardii; those with more deeply rounded cups covering ca. one-third of the nut are treated as Q. shumardii var. schneckii (Britton) Sargent. Quercus shumardii var. stenocarpa Laughlin was described from several trees in Missouri and Illinois having ellipsoid acorns that were covered less than one-third their length by very small (5.5-7 mm high × 12.5-18 mm wide), shallow cups (K. Laughlin 1969).
Quercus shumardii reportedly hybridizes with Q. buckleyi, Q. falcata (= Q. ×joori Trelease), Q. hemisphaerica, Q. imbricaria (= Q. ×egglestoni Trelease), Q. laevis, Q. laurifolia, Q. marilandica, Q. nigra, Q. palustris (= Q. ×mutabilis E. J. Palmer & Steyermark), Q. phellos (= Q. ×moultonensis Ashe), Q. rubra, and Q. velutina (= Q. × discreta Laughlin).
Selected References
None.
Lower Taxa
None.