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Related to eustele: siphonostele
A stele in which the primary vascular tissue is arranged in bundles around a pith, as in most seed plants.
a type of stele found in most seed plants, consisting of a central pith surrounded by the primary vascular tissue
eu•stele(ˈyu stil, yuˈsti li)
n., pl. -steles. Bot.
an arrangement of the xylem and phloem in discrete strands, separated by areas of parenchymatous tissue.