A curious and very special relationship exists between the Sourwood (and its family) and the fungus that feeds it. Find out all about this ancient pact, and hear us wretch and spit our way through a very sour segment of Trail Snacks.




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




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Cover art by Jillian Barthold

Music by Aves and The Mini-Vandals

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Michael Rizo (Sourwood)

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.

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After living a life of stem for the last 7 weeks, we need a break! So this week, you get a bonus episode: what is a leaf? In this episode from 2021 we discuss what a leaf is, how they grow, and some defining characteristics. To coincide with this bonus episode, we are expanding our CONE CLUB to include our very first--you guessed it--LEAF! The Bur Oak leaf illustrated by Caylin Jayde. We hope you love it, and if you want to receive this illustration as a sticker next month and support the show, join the Cone Club over at arbortrarypod.supercast.com. See you next week!




This week's episode is sponsored by NordVPN - get started at nordvpn.com/TREES

See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

BONUS EPISODE: What is a Leaf?

A grass so interesting it earned a spot on Completely Arbortrary, giant dragon bamboo (Dendrocalamus sinicus) is a stunningly large species with no shortage of interesting quirks. But… is it a tree, or does it look on enviously. Listen now to the exciting conclusion of Seven Deadly Stems! Then, listen for a segment of Trail Snacks, where we eat something we’ve wanted to try for years.

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

Support the pod and become a Treemium Member

Follow along on Instagram

Find Arbortrary merch on our store

Find additional reading on our website

Cover art by Jillian Barthold

Music by Aves and The Mini-Vandals

See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

7 Deadly Stems: ENVY (Giant Bamboo)

Pride, the downfall of many an ancient Greek hero, is the subject of today’s Deadly Stem. As is the Ohio Buckeye (Aesculus glabra). How did this underwhelming tree become a regional icon?

7 Deadly Stems: PRIDE (Ohio Buckeye)

An oft-reviled tree, the Russian-olive (Elaeagnus angustifolia) is the quintissential greedy little bastard. Its invasiveness is infamous, and the disappointments it presents are seemingly endless. Then we answer a listener question about “Stumpy”!

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

Support the pod and become a Treemium Member

Follow along on Instagram

Find Arbortrary merch on our store

Find additional reading on our website

Cover art by Jillian Barthold

Music by Aves and The Mini-Vandals

See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

7 Deadly Stems: GREED (Russian-Olive)

Are you sensitive? Do you show aggression when you're afraid or perceiving some sort of attack? Do you have a mercenary army of ants at your disposal to dispact at the first sign of aggression against you? Then you might just be a bullhorn acacia (Vachellia cornigera).

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

Support the pod and become a Treemium Member

Follow along on Instagram

Find Arbortrary merch on our store

Find additional reading on our website

Cover art by Jillian Barthold

Music by Aves and The Mini-Vandals

See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

Michael Rizo (Sourwood)

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