Opps Eire sorry there.
Well as the story goes, the Holly was the sacred plant of the druids, long before the oak and the mistletoe. No one was allowed to touch the berry's but the Cuilleain/Cuileain/Cuileann
the Holly priests. It is said that it is what opened their eyes. It is an interesting narrative hear is one to read if you are interested
Book of Cuileann another one is here
Lebor Clann Glas (The Book of the Green Race) both written by the same guy, both interesting reads. He makes an intriguing story in Clann Glas. As I have come to realize, you never know, narratives are a story to convey a purpose or point. Faith is, well a concept reserved for the
parousia of Yahshua Messiah; another excellent narrative, that is truthfully approached in ignorance even if it were completely fact.
It is just odd that I can't find any chemical analysis on the Irish Holly.
The truth is not for all men, but only for those who seek it.