Specialized aerial root projections that extend above water or soil surface to facilitate gas exchange in plants growing in waterlogged or oxygen-poor environments. These structures contain air-filled tissues called aerenchyma.
From Greek 'pneuma' meaning 'air' or 'breath' and 'phoros' meaning 'bearing' or 'carrying.' Coined in the late 19th century when botanists discovered these air-conducting structures in mangrove swamps.
Pneumatophores are like plant snorkels that stick up from swampy ground! Mangroves literally 'breathe' through these structures because their roots would suffocate in the oxygen-poor mud - it's like having lungs in your feet!
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