
Completely Arbortrary
Tree advocate Casey Clapp and his tree-curious friend Alex Crowson bring you a podcast about trees and other related topics. History, culture, art, religion, science... trees affect and are affected by everything. Join Casey and Alex on their silly and educational journey to prove it.
Latest episodes

Feb 24, 2022 • 1h 9min
Amazing Technicolor Dreamtree (Rocky Mountain Juniper)
The Rocky Mountain juniper (Juniperus scopulorum), like nearly all junipers, is a conifer that took a different strategy to get its seeds dispersed. This week we chat about convergent evolution, and how nature can find the same solutions to problems in very different ways.Completely Arbortrary is produced and hosted by Casey Clapp and Alex CrowsonSupport the pod and become a Treemium MemberFollow along on InstagramFind Arbortrary merch on our storeFind additional reading on our websiteCover art by Jillian BartholdMusic by Aves and The Mini-VandalsSee Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

Feb 17, 2022 • 1h 16min
The Other Biggest Tree (Coast Redwood)
What can't this tree do? The coast redwood (Sequoia sempervirens) rounds off our two-part series on the oft-confused redwoods of California. This week we celebrate this tree and all that it is, then Alex finds himself in Jeopardy.Completely Arbortrary is produced and hosted by Casey Clapp and Alex CrowsonSupport the pod and become a Treemium MemberFollow along on InstagramFind Arbortrary merch on our storeFind additional reading on our websiteCover art by Jillian BartholdMusic by Aves and The Mini-VandalsSee Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

Feb 10, 2022 • 1h 14min
The Biggest Tree (Giant Sequoia)
What does it take to be a perfect tree? We'll come to figuring it out this week as we dive into a flowing conversation about the giant sequoia (Sequoiadendron giganteum). Stick around for a discussion that explores everything about these trees, and then looks into where the term tree even comes from.Completely Arbortrary is produced and hosted by Casey Clapp and Alex CrowsonSupport the pod and become a Treemium MemberFollow along on InstagramFind Arbortrary merch on our storeFind additional reading on our websiteCover art by Jillian BartholdMusic by Aves and The Mini-VandalsSee Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

Feb 3, 2022 • 1h 9min
Shagadelic, Baby! (Shagbark Hickory)
The hickories (Carya) are a part of an ancient forest system that once existed across the entire northern hemisphere, from North America to Europe, across Asia to the Pacific and back again to the North America. This week, we chat about the shagbark hickory (Carya ovata) and discuss how it and it's closest relatives have been so successful, yet ended up so far from kin across the world. Completely Arbortrary is produced and hosted by Casey Clapp and Alex CrowsonSupport the pod and become a Treemium MemberFollow along on InstagramFind Arbortrary merch on our storeFind additional reading on our websiteCover art by Jillian BartholdMusic by Aves and The Mini-VandalsSee Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

Jan 27, 2022 • 1h 3min
Graveyardery (English Yew)
The English yew (Taxus baccata) is one of our most storied, mythological, and metaphorical trees to date. Death, disease, toxicity, warfare... it has it all! Listen along as we discuss this poisonous protector of the dead. All hail Hecate!Completely Arbortrary is produced and hosted by Casey Clapp and Alex CrowsonSupport the pod and become a Treemium MemberFollow along on InstagramFind Arbortrary merch on our storeFind additional reading on our websiteCover art by Jillian BartholdMusic by Aves and The Mini-VandalsSee Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

Jan 20, 2022 • 1h 11min
Mastodon! (Osage Orange)
What do you do when the way of life that you evolved over millions of years was rendered useless in the blink of an eye? Something very similar to that happened to the Osage-orange (Maclura pomifera) at the end of the Pleistocene epoch, and it wasn't alone.Completely Arbortrary is produced and hosted by Casey Clapp and Alex CrowsonSupport the pod and become a Treemium MemberFollow along on InstagramFind Arbortrary merch on our storeFind additional reading on our websiteCover art by Jillian BartholdMusic by Aves and The Mini-VandalsSee Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

Jan 13, 2022 • 1h 16min
Elven Beauty (European Beech)
Has the European beech (Fagus sylvatica) been man's best friend since time-immemorial, or has it just been doing it best to impress the whole time? This week we discuss the complex history of the European beech, but the jury is still out if it's a natural history or unnatural.Completely Arbortrary is produced and hosted by Casey Clapp and Alex CrowsonSupport the pod and become a Treemium MemberFollow along on InstagramFind Arbortrary merch on our storeFind additional reading on our websiteCover art by Jillian BartholdMusic by Aves and The Mini-VandalsSee Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

Jan 6, 2022 • 1h 21min
Trees Become Alligators (Japanese Black Pine)
The King of Bonsai, this week we're welcoming the new Unseason of Completely Arbortrary with a discussion of the Japanese black pine (Pinus thunbergii). This tree has been cultivated for thousands of years as bonsai trees, and this week we chat about what Casey and Alex think of these trees and the art form they helped create.Completely Arbortrary is produced and hosted by Casey Clapp and Alex CrowsonSupport the pod and become a Treemium MemberFollow along on InstagramFind Arbortrary merch on our storeFind additional reading on our websiteCover art by Jillian BartholdMusic by Aves and The Mini-VandalsSee Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

Dec 30, 2021 • 1h 17min
BONUS EPISODE - We Three Drinks (Coffee, Hops, & Grapes)
Enjoy this BONUS EPISODE from our Patreon as a palette cleanser to this season of food trees, in which we discuss three drinks from non-tree plants; coffee, hops, and grapes.Completely Arbortrary is produced and hosted by Casey Clapp and Alex CrowsonSupport the pod and become a Treemium MemberFollow along on InstagramFind Arbortrary merch on our storeFind additional reading on our websiteCover art by Jillian BartholdMusic by Aves and The Mini-VandalsSee Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

Dec 23, 2021 • 1h 26min
Food of the Gods (Cacao)
In our annual finally, we talk about the amazing cacao tree (Theobroma cacao). We discuss the sordid history of this funny little fruit, and we end the season with a deep dive into the real costs of our eating culture. As a palette cleanser, we play a new game! Then we discuss the future of Completely Arbortrary...Completely Arbortrary is produced and hosted by Casey Clapp and Alex CrowsonSupport the pod and become a Treemium MemberFollow along on InstagramFind Arbortrary merch on our storeFind additional reading on our websiteCover art by Jillian BartholdMusic by Aves and The Mini-VandalsSee Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.