Relating to or of the nature of a gluma; resembling or containing glumae.
From 'gluma' + '-al' (relating to). A less common botanical adjective formed in the 19th century as botanists developed precise terminology for describing grass anatomy.
This is the 'relating to' version of gluma—when botanists want to say something has gluma-like qualities, they whip out 'glumal' to sound extra scientific!
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