Planting at 4,000 meters (IMAGE) Frontiers Caption Planting Abies religiosa (Sacred fir) seedlings at the timberline (4000 m of elevation) of Nevado de Toluca volcano, under the shade of preexisting Lupinus elegans as protective “nurse plants”. This site is about 450 higher in elevation than the maximum natural distribution of Abies religiosa. Credit Cuauhtémoc Sáenz-Romero, UMSNH Usage Restrictions Credit must be given to the creator. License CC BY Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.