A type of plant stem structure where the vascular bundles form a hollow cylinder with gaps between them at the leaf attachment points.
From Greek 'eu-' (well) + 'stele' (standing pillar, stem). In botany, 'stele' refers to the central vascular cylinder of plant stems.
The eustele structure in flowering plants is like nature's engineering marvel—those gaps allow leaves to attach while keeping the plant's plumbing system intact and sturdy.
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