WILD RAMBLINGS: What's In A Name?

 I have quite a lot of flowers in my lane. For example:

to name but a few, The thing is, with names like that to choose from, why would anyone want to call a plant Digitalis Purpurea, or Caltha Palustris, or Geum Urbanum, or Filipendula Ulmaria?

If you are a botanist, don't answer that, as it was intended as a rhetorical question.

I spent a lot of a time as a child looking at wild flowers and pressing a lot of them.. We had to make our own entertainment in those days. I can identify quite a few. Can you tell the difference between Hop Trefoil and Black Meddick? They look almost identical but one has a tiny spike in the cleft of the heart-shaped leaves. I know this because I spent several hours on my knees, helping a friend with her botanical homework, identifying every species in six square yards of pasture. The trouble is, 50 years on, I can't remember which has the spike and which doesn't. But I still like looking for them.