a- +‎ stele +‎ -ic


astelic (not comparable)

  1. (botany) Lacking steles.
    • 1901, Transactions of the Linnean Society of London: Botany. 2d Series (page 298)
      We see, therefore, that the plants in this Order, although generally astelic, sometimes aggregate all the vascular bundles present in certain of their members into so many steles []
    • 1999, R. J. Harvey Gibson, Outlines Of Botany (page 181)
      The astelic type of Van Tieghem does not result from the separation of the constituent epicotyledonary stele into its constituent bundles, for in the young so-called astelic axis there are no bundles present at all, but a collateral stelar tube []