whitebark
Noun
Meaning
whitebark (plural whitebarks)
The North American pine Pinus albicaulis, found in mountainous and subalpine regions, often as krummholz.
Phrases with the word
Examples
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.
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.
As with whitebark pine, loss of the bee's habitat was considered less important than other threats.
A non-native fungus has been killing whitebark pines for a century.
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.
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.