Noun
whitebark (plural whitebarks)
The North American pine Pinus albicaulis, found in mountainous and subalpine regions, often as krummholz.
At maturity, the cones usually open to release the seeds, but in some of the bird-dispersed species (e.g. whitebark pine ), the seeds are only released by the bird breaking the cones open. Source: Internet
As of 2007, the whitebark pine is threatened by a fungus known as white pine blister rust ; however, this is mostly confined to forests well to the north and west. Source: Internet
As with whitebark pine, loss of the bee's habitat was considered less important than other threats. Source: Internet
A non-native fungus has been killing whitebark pines for a century. Source: Internet
The decline of whitebark pine nut due to the inadvertent introduction by man of the invasive, virulent fungi Cronartium ribicola has in turn required grizzlies to seek alternate food sources, many of which are carnivorous. Source: Internet
In Yellowstone, about seven percent of the whitebark pine species have been impacted with the fungus, compared to nearly complete infestations in northwestern Montana. citation Quaking Aspen and willows are the most common species of deciduous trees. Source: Internet