In article ,
Stewart Robert Hinsley wrote:
In article , Nick Maclaren
writes

There are definitions for plants where the growth point during the
dormant season is below, at or above soil level, which is what is
being asked for, but I now forget them and they are rarely used.
There is also the problem that many plants will behave in different
fashions according to conditions - e.g. many plants will grow from
their stems after a mild winter but from their roots after a hard
one.

Would this be the set of terms you're thinking of?

http://www.spookspring.com/Umbels/Plant_Types.html

In a word, yes.


Regards,
Nick Maclaren.