Tusam ponderosa: Perbedaan antara revisi

Sumber berbeda mengenai aroma ''P. Ponderosa'' . Beberapa menyatakan bahwa kulit kayunya berbau [[terpentin]], yang mencerminkan dominasi terpen (alfa dan beta-pinena, dan delta-3-carene).<ref>{{Cite book|last=Smith|first=Richard H.|year=1977|title=Monoterpenes of ponderosa pine in Western United States|publisher=USDA Forest Service|id=Tech. Bull. 1532}}</ref> Yang lain menyatakan bahwa ia tidak memiliki aroma yang khas, <ref name="schoenherr2">{{Cite book|last=Schoenherr|first=Allan A.|year=1995|title=A Natural History of California|url=https://archive.org/details/naturalhistoryof0000alla|publisher=University of California Press|page=[https://archive.org/details/naturalhistoryof0000alla/page/111 111]}}</ref> sementara yang lain menyatakan bahwa kulit kayunya berbau seperti vanila jika diambil sampelnya dari alur kulit kayu.<ref>{{Cite book|last=Kricher|first=John C|year=1998|title=A field guide to Rocky Mountain and southwest forests|publisher=Houghton Mifflin|page=194}}</ref> Sumber setuju bahwa tusam Jeffrey memiliki wangi yang lebih kuat dibandingkan tusam Ponderosa. <ref name="schoenherr2" /> <ref>{{Cite book|last=Kricher|first=John C.|year=1998|title=A field guide to California and Pacific Northwest forests|publisher=Houghton Mifflin|page=107}}</ref> Saat diukir, [[Gegala|tunggul]] berisi getah mengeluarkan aroma segar. <ref name=":04">{{Cite book|last=Arno|first=Stephen F.|last2=Hammerly|first2=Ramona P.|year=2020|url=https://www.worldcat.org/oclc/1141235469|title=Northwest Trees: Identifying & Understanding the Region's Native Trees|location=Seattle|publisher=[[Mountaineers Books]]|isbn=978-1-68051-329-5|edition=field guide|pages=49–57|language=en|oclc=1141235469}}</ref>