There are more than 20 species of Polylepis shrubs and trees. At the highest altitudes (upwards of 16,000 feet, they grow as small shrubs. Lower, they can grow up 120 feet. So this forest is a bit unique, and we need to get to the bottom of it: IS it a forest? Or is it a shrubland? When does it become such?

Completely Arbortrary is produced and hosted by Casey Clapp and Alex Crowson

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Cover art by Jillian Barthold

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