Introductory
SPECIES: Quercus havardii | Sand Shinnery Oak 



ABBREVIATION : 
QUEHAV

SYNONYMS : 
NO-ENTRY


SCS PLANT CODE : 
   QUHA3
   QUHAH
   QUHAT


COMMON NAMES : 
   sand shinnery oak
   Havard's oak
   Tucker's oak
   shinnery oak
   shin oak
   sand shin oak


TAXONOMY : 
The currently accepted scientific name of sand shinnery oak is Quercus
havardii Rydb. [20].  It is a member of the white oak subgenus
(Lepidobalanus), within the order Fagales [2,32].  Accepted varieties
are [20]:

        Q. h. var. havardii  Havard's oak
        Q. h. var. tuckeri Welsh  Tucker's oak

Sand shinnery oak hybridizes with several sympatric oaks including shin
oak (Q. mohriana) and post oak (Q. stellata) [28].  Introgression and
backcrossing between sand shinnery oak and post oak are widespread [28].
These species have distinct ecological requirements but may occur
together on certain limestone ridges.  Muller [28] notes that the
separation of sand shinnery and post oak is maintained as a result of
ecological differences which "are themselves sufficient basis for
specific distinction."  Sand shinnery oak may also hybridize with Gambel
oak (Q. gambelii) in some locations [39].


LIFE FORM : 
Tree, Shrub

FEDERAL LEGAL STATUS : 
No special status

OTHER STATUS : 
NO-ENTRY


COMPILED BY AND DATE : 
D. Tirmenstein, April 1991


LAST REVISED BY AND DATE : 
NO-ENTRY


AUTHORSHIP AND CITATION : 
Tirmenstein, D. A. 1991. Quercus havardii. In: Remainder of Citation

Related categories for Species: Quercus havardii | Sand Shinnery Oak