Our twenty-ninth tree, Common Buckthorn (Rhamnus cathartica), and our thirtieth tree, Alder Buckthorn (Frangula alnus) - The BUCKTHORNS of the Rhamnaceae. Their unripe berries made paint pigment that was stored in a pig’s bladder, their charcoal made gunpowder that has defined a society and their toxic seeds have made humans purge their bowels making countless regretful foragers! Our Buckthorns are an easily ignorable shrub that have left an indelible mark upon humankind. (Special thanks to Ian Bartholomew, Darren Moorcroft of the Woodland Trust, and James Robinson of the Wildfowl and Wetlands Trust for all adding their voices to this episode.) More from David Oakes as he uproots the secrets and stories beneath the 56(ish) Native Trees of the British Isles can be found at: https://www.treesacrowd.fm/56Trees/

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