The western pinepalm developed from the shallowpalm. It has long thin leaves which don't catch snow. This allows it to grow in alpine regions. The toxin of the shallowpalm has become a non-toxic substance which now acts as a kind of anti-freeze, which stops the pinepalm from getting frostbitten. With only a few herbivores in the area, the pinepalm quickly formed huge forests, covering the western alpine regions.
Living Relatives (click to show/hide)
None found. Note that this does not necessarily mean it has no living relatives at all, but that, assuming all taxonomy is filled in, its entire phylum is extinct; any relatives it does have likely do not resemble it.