Sykurfura
Sykurfura (fræðiheiti Pinus lambertiana) er hávaxnasta og gildvaxnasta furutegundin, og hefur lengstan köngul allra barrtrjáa. Fræðiheitið lambertiana var gefið af Breska grasafræðingnum David Douglas, sem nefndi tegundina til heiðurs enska grasafræðingnum, Aylmer Bourke Lambert. Hún er ættuð frá fjöllum Kyrrahafsstrandar Norður-Ameríku, frá Oregon gegn um Kaliforníu til Baja California.

Tilvísanir

Viðbótarlesning
  , with illustrations by Carl Eytel - Kurut, Gary F. (2009), "Carl Eytel: Southern California Desert Artist", California State Library Foundation, Bulletin No. 95, pp. 17-20  retrieved November 13, 2011
 Muir, J. (1911). My First Summer in the Sierra.
 Kinloch Jr., Bohun B.; Scheuner, William H. (1990). "Pinus lambertiana". In Burns, Russell M.; Honkala, Barbara H. Conifers. Silvics of North America. Washington, D.C.: United States Forest Service (USFS), United States Department of Agriculture (USDA). 1 – via Southern Research Station (www.srs.fs.fed.us).
 Habeck, R. J. (1992). "Pinus lambertiana". Fire Effects Information System (FEIS). US Department of Agriculture (USDA), Forest Service (USFS), Rocky Mountain Research Station, Fire Sciences Laboratory – via https://www.feis-crs.org/feis/.

Tenglar
 U.C. Jepson Manual treatment for Pinus lambertiana
 US Forest Service—Dorena Genetic Resource Center  — (USFS rust resistance program)
 The Sugar Pine Foundation — The Sugar Pine and Western White Pine Restoration Program
 Pinus lambertiana in the CalPhotos Photo Database, University of California, Berkeley
 Pinus lambertiana  Rauði listi IUCN yfir tegundir í hættu. IUCN 2006 
 Arboretum de Villardebelle: photo of a cone

Furur
Barrtré