I was thinking about titling the entry, Speaking of bark... But it was too corny & Andy Rooneyesque. I couldn't do it.
Nevertheless, here are some shots of the various barks on tropical palms. On most temperate trees , the trunks become wider & taller. Palms usually just get taller. You can see how that affects the bark. Palms have more horizontal lines, as if the trunk is being stacked taller.