Plants colonized earth first
and are responsible
for creating and maintaining
our planet's favorable environment,
including the oxygen in air.
turn energy into matter
and animals exist by returning
the material to energy.
In addition, trees have played
a material role in civilization;
lumber for buildings and vehicles,
wood for furniture and tools,
fire for cooking and heating
and pulp for paper.
And for no reason at all
trees graphically record their history
which is caught in the material
and made visible in color and figure.