The firpalm developed from the western pinepalm. Its long, thin leaves have developed into branches and on the smaller, pine tree-like needles (which don't catch snow). With the additional leaves, it can collect more sunlight. Like its ancestor, it has a non-toxic substance which now acts as a kind of anti-freeze which stops the firpalm from getting frostbitten. It has been so successful, it has not only spread to both polar regions, but has completely replaced its ancestor.
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.