Relating to or describing a plant stem or structure where the phloem tissue is present on both the inner and outer sides of the xylem.
From 'amphi-' (both) + Greek 'phloios' (bark/phloem tissue). Coined in botanical anatomy to describe rare vascular arrangements where nutrient-transporting tissue appears in dual locations.
Most plants have a simple plumbing system—xylem in the middle, phloem around the edge—but amphiphloic plants are rebels with phloem tissue wrapping around BOTH sides of their wood, a rare evolutionary quirk.
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