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Native to Kandra Homeland
World of Origin Scadrial
Universe Cosmere

Perchwither is a bioluminescent fungus which grows only in the kandra Homeland.[1] It generates a dim blue light, which the kandra grow eyes specifically to see effectively inside.[2]

A glowstone is a large, porous rock which perchwither grows on.[2] TenSoon noted that the Trustwarren did not use glowstone for its light, instead being lit with oil lamps with blue glass.[3]

It is possible that this is related to glowpaste on Threnody.[4]


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This page contains all the knowledge we have on the subject at this time.
Chaos2651 (talk) 05:58, 2 February 2020 (UTC)