PodcastsComedyCompletely Arbortrary

Completely Arbortrary

Completely Arbortrary
Completely Arbortrary
Latest episode

271 episodes

  • Completely Arbortrary

    Even Older Growth (Western Juniper 2)

    12/2/2026 | 1h 30 mins.
    You’ve heard of old growth forest… but how about old growth woodland? For more info, ask the western juniper (Juniperus occidentalis), a tree that is helping to redefine the meaning of old growth. Then, we play a brand new game!
    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.
  • Completely Arbortrary

    Renaissance Tree (Superb Schima)

    05/2/2026 | 1h 8 mins.
    A tree that lacks nothing… except for name recognition: the superb schima (Schima superba) (yes, that is its real name.)
    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.
  • Completely Arbortrary

    Cones on the Spectrum (Celerytop-Pine)

    29/1/2026 | 1h 19 mins.
    Forget everything you thought you knew about conifers, and make way for the celerytop-pine (Phyllocladus aspleniifolius) with leaves and cones like no other, and raises the question “what is a conifer”?
    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.
  • Completely Arbortrary

    Evolutionary Naïveté (Blue Ash)

    22/1/2026 | 1h
    When the emerald ash borer came to North America, few ashes survived. But one native species, the blue ash (Fraxinus quadrangulata), survived. How did this lucky survivor beat the odds?
    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.
  • Completely Arbortrary

    Bird Influence (Limber Pine)

    15/1/2026 | 1h 26 mins.
    Today we discuss our flexible friend the limber pine (Pinus flexilis) and its curious co-evolutionary relationship with, you guessed it, BIRDS.
    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.

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About 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.
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