Introductory
SPECIES: Quercus shumardii | Shumard Oak 



ABBREVIATION : 
QUESHU

SYNONYMS : 
   Quercus texana Buckl. [25]


SCS PLANT CODE : 
   QUSH


COMMON NAMES : 
   Shumard oak
   Shumard's red oak
   Shumard red oak
   spotted oak
   Schneck oak
   southern red oak
   swamp red oak
   Texas oak
   Texas red oak
   Spanish oak


TAXONOMY : 
The currently accepted scientific name for Shumard oak is Quercus
shumardii Buckl.  It is a member of the red oak group (subgenus
Erythrobalanus) [11,25].  There are no accepted subspecies or forms.
Some authorities recognize the following varieties [11,25,38]:

      Quercus shumardii var. shumardii
      Quercus shumardii var. texana (Buckl.) Ashe      (Texas oak)
      Quercus shumardii var. schneckii (Britt.) Sarg.  (Schneck oak)

A new variety, Q. s. var. stenocarpa, with very narrow and shallow acorn
cups, has been reported in the Midwest [24].  Maple-leaf oak, which was
formerly accepted as a variety of Shumard oak (as Q. s. var. acerifolia),
has been elevated to species status as Q. acerifolia Stoynoff & Hess [34,50].

Shumard oak forms hybrids with nine other species of oaks [11,25,45].  It
is most closely related to blackjack oak (Q. marilandica) and black oak
(Q. velutina), as determined by electrophoresis [17].


LIFE FORM : 
Tree

FEDERAL LEGAL STATUS : 
See OTHER STATUS

OTHER STATUS : 
Shumard oak is listed as vulnerable in Ontario [51].

Quercus acerifolia is treated as a distinct species and therefore not
discussed in the write-up.  It is, however, listed as a Category 2 plant
under the former name Q. shumardii var. acerifolia [49].


COMPILED BY AND DATE : 
Janet Sullivan, October 1993


LAST REVISED BY AND DATE : 
NO-ENTRY


AUTHORSHIP AND CITATION : 
Sullivan, Janet. 1993. Quercus shumardii. In: Remainder of Citation

Related categories for Species: Quercus shumardii | Shumard Oak