stele

This term carries a heavy academic and archaeological weight, evoking images of ancient civilizations and the permanence of stone records. It is primarily used in formal historical or art-historical contexts to describe commemorative monuments, distinguishing it from a simple gravestone by its role as a public proclamation or a religious marker.

In botanical science, the word shifts from a physical monument to a biological structure. It describes the internal vascular cylinder of a plant, focusing on the functional transport of nutrients. Because the word is borrowed from Greek, it possesses an irregular plural form; while steles is acceptable, the classical plural stelae is far more common in scholarly writing.