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Expanded Dune
This article or section refers to elements from Expanded Dune.

Osthmir tubers are edible roots on Harmonthep.

They grew in brackish water.

Behind the scenes[]

The narrative of the Butlerian Jihad mentions that Ishmael dug osthmir tubers on Harmonthep, however the glossary of the book mentions they grew on Poritrin.

Appearances[]

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