In article , Sacha
writes

But not
caring what family a plant falls into is, I would suggest, because people
care more what they look like or how they'll do in that awkward shay corner
of their garden, than anything else.

That's what is so silly! Knowing where a plant a plant fits in to a
taxonomy gives you all sorts of clues as to what it looks like, what
conditions it will like, and so on. It's so much less of a burden on the
memory to remember the exceptions than remembering all these details for
each plant individually.
--
Kay
"Do not insult the crocodile until you have crossed the river"