<P> The timber resources used to make wood pulp are referred to as pulpwood . Wood pulp comes from softwood trees such as spruce , pine , fir , larch and hemlock , and hardwoods such as eucalyptus , aspen and birch . </P>
where do the plant fibres that are used to make paper come from
from softwood trees such as spruce , pine , fir , larch and hemlock , and hardwoods such as eucalyptus , aspen and birch