eustele

== English == === Etymology === From eu- +‎ stele. === Noun === eustele (plural eusteles) (botany) A type of siphonostele, in which the vascular tissue in the stem forms a central ring of bundles around a pith. ==== Hyponyms ==== atactostele ==== Derived terms ==== eustelic === See also === Stele (biology) on Wikipedia.Wikipedia