Completely Arbortrary

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Completely Arbortrary

Welcome to Completely Arbortrary, the podcast about trees and other related topics. What's up, Fungal Associates!

This weekly podcast is a scientific look at trees and how they affect and are affected by everything, hosted by master arborist and environmental educator Casey Clapp and his tree-curious friend and musical artist Alex Crowson. Each episode features a tree from around the world and a discussion about its unique position in culture, ecology, and history. These discussions can range from urban fores

try and evolutionary biology to folk mythology and popular culture. The hard science is framed in plenty of silliness, with a casual tone, games and parody songs, and the titular arbitrary numerical rating of the tree at the end of each episode. This podcast's mission is to provide approachable science to audiences of all experience levels and reconnect people to the natural elements around them, whether deep in the forest or just outside their front door.

03/07/2025

NEW EPISODE: There's Always Money in the (Banana Tree)

It’s a BANANZA with the banana (Musa acuminata), a fruit so popular that it helped shape the political landscape of the world.

Listen anywhere you get your pods!

01/07/2025

THIS WEEK 🍌

24/06/2025

Cone of the Month: Mystery Cone

What's up Fungal Associates! This month's supporter sticker is the incredible MYSTERY CONE. Why is it a mystery? Well, because we're not entirely sure what species is it. It was illustrated by the wildly talented .floripondia and looks precisely like the inspiration. But what species is it???

To get monthly botanical stickers sent to your mailbox, become a Treemium Member at the link in the bio.

19/06/2025

Introducing... TROPICAL VACATION! 🌺 a series all about tropical trees!

Our first visit is Brazil, where the ipê (𝘏𝘢𝘯𝘥𝘳𝘰𝘢𝘯𝘵𝘩𝘶𝘴 𝘪𝘮𝘱𝘦𝘵𝘪𝘨𝘪𝘯𝘰𝘴𝘢) reigns supreme. This tree has no shortage of strengths, quite literally! From decking to medicine, this tree has it all. Then, we play a special musical edition of The Slang Game.

Listen anywhere you get your pods!

08/06/2025

NEW (LATE) EPISODE: Paperbark Maple (𝘈𝘤𝘦𝘳 𝘨𝘳𝘪𝘴𝘦𝘶𝘮)

No, your Spotify isn't glitching, we are!

Parthenowhatnow? Parthenocarpy! Why are 90% of the paperbark maple's (Acer griseum) infertile? Only nature knows.

Also pictured is the Saw & Boarder material we mentioned in this episode.

To get monthly botanical stickers and ad free listening, join the Cone Club (link in bio)!

Listen anywhere you get your pods.

29/05/2025

NEW EPISODE: Trunk Drawer (Governor's Plum)

It's a bit of governor's plum, innit? (Flacourtia indica) But where to put it? This wayward species finally found a home with the willows, but what happens to those unlucky species who spend their lives in the taxonomic junk drawer?

AVAILABLE ANYWHERE YOU GET YOUR PODS.

To support the pod and get monthly botanical stickers, join the CONE CLUB (link in bio)

22/05/2025

NEW EPISODE: Bean Leaves in Bo***ge (Silk Tree)

Let's get kinky with the silk tree (𝘈𝘭𝘣𝘪𝘻𝘪𝘢 𝘫𝘶𝘭𝘪𝘣𝘳𝘪𝘴𝘴𝘪𝘯). This beautiful tree has a very curious way of keeping its leaves close to the stem. Then we finish our game series Fight Shrub!

If you want to support the podcast and get monthly botanical stickers, join the CONE CLUB - link in bio

Find this episode anywhere you get your pods!

20/05/2025

Sticker of the Month: the flower of the Bradford pear by

What can we say… when Lauren pitched this idea I just couldn’t help but say yes. If you join the Cone Club (link in bi0), you’ll get this stinky sticker next month, and support the pod at the same time.

We are unfortunately(?) unable to do Scratch n Sniff technology at this time but could you IMAGINE!

11/05/2025

Today Casey and I will be at the Mother Earth Plant Sale & Eco Fair at McMenamins Edgefield from 10am-4pm! We'll have a booth with lots of stickers and shirts, and will be around all day to chat and say hi! Every purchase comes with a free Arbortrary post card too! Come on by and say hello.

07/05/2025

NEW TREEMIUM EPISODE: The Acorn Woodpecker (𝘔𝘦𝘭𝘢𝘯𝘦𝘳𝘱𝘦𝘴 𝘧𝘰𝘳𝘮𝘪𝘤𝘪𝘷𝘰𝘳𝘶𝘴) 🐦

In this appendix to our knobcone pine episode, we chat about the acorn woodpecker (𝘔𝘦𝘭𝘢𝘯𝘦𝘳𝘱𝘦𝘴 𝘧𝘰𝘳𝘮𝘪𝘤𝘪𝘷𝘰𝘳𝘶𝘴) and the very curious way it stores its food.

Treemium Members will find this episode in their Treemium feed. To become a Treemium Member and get lots of cool rewards for supporting the podcast, hit up the link in our bio!

01/05/2025

NEW EPISODE: Knobcone Pine (𝘗𝘪𝘯𝘶𝘴 𝘢𝘵𝘵𝘦𝘯𝘶𝘢𝘵𝘢)

Who started the fire? It may have been the knobcone pine in a ditch attempt to RELEASE THE SEEDS! This curious pine has a curious way of dispersing which includes fire, cones, and cannibalism.

Then, we play a new edition of an old classic, and answer a Tree ID question.

Listen anywhere you get your pods!

29/04/2025

Cone of the Month: Jack Pine by .visual

Treemium supporters who joined in April will receive this amazing sticker next month. Become a treemium member today at the link in the bio to receive monthly stickers and much more!

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