Robuta

https://plants.ces.ncsu.edu/plants/pinus-flexilis/ Pinus flexilis (Limber Pine, Limbertwig Pine, Rocky Mountain Pine) | North Carolina Extension... limber pine rocky mountain north carolina pinus extension https://www.nps.gov/articles/000/volunteers-plant-limber-pine-seedlings-in-rocky-mountain-national-park.htm Volunteers Plant Limber Pine Seedlings in Rocky Mountain National Park (U.S. National Park Service) rocky mountain national park