Listening to the podcast 99% Invisible I learned that palm trees are not actually trees. They are kind of a super grass, according to Jared Farmer who wrote Trees in Paradise: A California History. From the podcast, “palm trees don’t make bark or branches. If you cut them down you won’t find any rings in the trunk, all their roots grow in a compact ball…” This is an interesting story about palms in California and how demand has caused some mature trees to sell for as much as $20,000. Also great podcast.”