Gümeli Porsuğu

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Gümeli Porsuğu is a yew tree (Taxus baccata) growing high in Zonguldak district of Black Sea Region, in Turkey. As of 2019, it was estimated to be 4,115 years old.{{Cite web|url=https://www.trthaber.com/haber/yasam/dunyanin-en-yasli-porsuk-agaci-zonguldakta-421932.html|title=Dünyanın en yaşlı porsuk ağacı Zonguldak'ta|website=www.trthaber.com|access-date=2020-01-24}}{{Cite web|url=http://www.ktu.edu.tr/ormanmuhendisligi-etkinlik13857|title=Karadeniz Teknik Üniversitesi|website=www.ktu.edu.tr|access-date=2020-01-05|archive-date=2020-07-24|archive-url=https://web.archive.org/web/20200724065954/http://www.ktu.edu.tr/ormanmuhendisligi-etkinlik13857|url-status=dead}}{{cite web | url = http://www.hurriyetdailynews.com/oldest-yew-tree-found-in-turkeys-north.aspx?pageID=238&nID=100428&NewsCatID=341 | title = Oldest yew tree found in Turkey’s north, | accessdate = July 9, 2016}}

The region where the tree is located was included within the borders of Gümeli Nature Monument on July 14, 2016.[https://s3.amazonaws.com/crowdspring3-production/project_files/42/99aacd3328a84e319889b4080276711e.pdf Gümeli Tabiat Anıtı Yönetim Planı Analitik Etüt ve Sentez Raporu], 2017, Orman ve Su İşleri Bakanlığı Doğa Koruma ve Milli Parklar Genel Müdürlüğü The Gümeli yew tree was also registered as a Memorial Tree on April 2, 2018.{{Cite web|url=https://www.csb.gov.tr/cevre-ve-sehircilik-bakanligi-zonguldakta-4-bin-113-yasindaki-porsuk-agacini-tescilledi-bakanlik-faaliyetleri-23182|title=Çevre Ve Şehircilik Bakanlığı Zonguldak'ta 4 Bin 113 Yaşındaki Porsuk Ağacını Tescilledi|website=www.csb.gov.tr|access-date=2020-02-28|archive-date=2019-08-23|archive-url=https://web.archive.org/web/20190823222607/http://www.csb.gov.tr/cevre-ve-sehircilik-bakanligi-zonguldakta-4-bin-113-yasindaki-porsuk-agacini-tescilledi-bakanlik-faaliyetleri-23182|url-status=dead}}

The age of the Gümeli Porsuğu was estimated between 1950 and 2000 according to the calculation made by İstanbul Üniversitesi Orman Fakültesi Orman Botaniği Anabilim Dalı Dendrokronoloji Laboratuvarı (Dendrochronology Laboratory of Istanbul University Faculty of Forestry, Department of Forestry), using 2 increment items taken from the same tree in 2017.[https://www.ormancilardernegi.org/UserFiles/file/OrAv030418_compressed.pdf “Zonguldak-Alaplı’daki anıt porsuk (Taxus baccata L.) ağacı gerçekten 4.112 yaşında mı?”] {{Webarchive|url=https://web.archive.org/web/20200228173104/https://www.ormancilardernegi.org/UserFiles/file/OrAv030418_compressed.pdf |date=2020-02-28 }}, Orman ve Av Dergisi, Year: 2018 I Mart – Nisan, Volume: 2, Issue: 96 , Pages:11-19