Quercus stellata (Post Oak) - Physical description, habitat, and range. Includes image of acorns. - http://www.enature.com/partners/nwf/showSpeciesLG_nwf.asp?familyName=&shapeName=&curFamilyID=&showType=4&rgnID=1599&curGroupID=10&curPageNum=174&recnum=TS0085
Quercus stellata - Distribution and occurrence, value and use, characteristics, and fire ecology. - http://www.fs.fed.us/database/feis/plants/tree/queste/