*[http://www.biodiversitylibrary.org/search.aspx?SearchTerm=Portulaca%20oleracea&SearchCat= BHL]
*[http://ecocrop.fao.org/ecocrop/srv/en/cropFindForm FAO Ecocrop]
*[http://www.feedipedia.org/ Feedipedia]
*[http://www.botanical.com/botanical/mgmh/p/prugol77.html Grieve's herbal]
*[https://npgsweb.ars-grin.gov/gringlobal/taxonomydetail.aspx?id=29453 GRIN]
*[http://www.ipni.org/ipni/simplePlantNameSearch.do?find_wholeName=Portulaca%20oleracea&output_format=normal&query_type=by_query&back_page=query_ipni.html IPNI]
*[http://mansfeld.ipk-gatersleben.de/pls/htmldb_pgrc/f?p=185:45:1329164412874601::NO::P7_BOTNAME,P7_DB_CHECKBOX1,P7_DB_CHECKBOX2,P7_DB_CHECKBOX4:Portulaca%20oleracea,,, Mansfeld]
*[http://herbnaeb.umdbrit.umich.eduorg/herbuses/search.pl/?searchstringstring=Portulaca%20oleracea +oleracea Moerman, Native American Ethnobotany]
*[http://www.plantnames.unimelb.edu.au/Sorting/Portulaca.html Multilingual Plant Name Database]
*[http://www.hort.purdue.edu/newcrop/nexus/Portulaca_oleracea_nex.html NewCrop Purdue]