A thin, chaffy bract that encloses the flowers of grasses and sedges, protecting the developing seeds.
From Latin 'gluma' meaning 'husk' or 'chaff,' possibly from proto-Indo-European *ghel- meaning 'to shine' or 'golden' (referring to dried grain husks). The term became standard in botanical terminology by the 18th century.
Glumes are nature's packaging—those papery husks on wheat stalks aren't just decoration, they're precisely designed armor that keeps baby seeds safe from insects, fungi, and harsh weather until the plant is ready to spread them.
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