When the nipples point downwards, we call 'em spaniels ears in our neck of the woods.  :o
Sorry.

From my neighbour, I understand that the twisted trunk ones that went black first this year are called Sevillenc , and the later green ones which are turning just now are called Marrut. We also have another variety called Farga, which are long, and slim.

And the little tiny ones are called Arbequina - beyond that I know little else.

HTH