Or acivro ou xardon ( ilex aquifolium ) It's Holly, in Galician, bright green leaves and spikes at the edges; plant protected and sacred in Celtic culture, once used for medicinal purposes and whose wood is good for making bagpipes. It occurs primarily in fresh and moist mountains in the Northwest of the peninsula. It also occurs as an ornamental shrub in many parks in Spain. It is one of the jewels of our flora.