Viewing Photos Tagged as: pine cone
Point Reyes National Seashore
Source: Point Reyes National SeashoreBishop Pine Cones: Bishop pine trees have resin-sealed "serotinous" cones which require heat to open them and release the seeds. Bishop pines only live to be about 120 years old. In the absence of fire, their population may begin to decline. However, on very hot days, the sun can also open the cones.