Definitions for "Stalagmite"
A deposit more or less resembling an inverted stalactite, formed by calcareous water dropping on the floors of caverns; hence, a similar deposit of other material.
An inverted icicle-shaped deposit that builds up on a cave floor beneath a stalactite and is formed by the same process as a stalactite.
A calcium carbonate deposit which builds upward from the cave floor as a result from water dripping on the floor.
Keywords:  ae'gura, courtyard, stump, stairs, arch
There are many around, but this particular one is found in the middle of the courtyard, top of the great stairs, Ae'gura. Sometimes referred to as "split stalagmite" or "tree stump" or "tree arch".