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Interesting. Have you ever tried to eat them? The ones in Wisconsin were smaller too, with more spines!

I was going to mention how they had more spines, I did cut one open and try it. Wasn't there for any fruits. If I remember right it tasted like the cactus juice my parents bought from the health food(aloe). I always liked it because of the Flintstone who were always quaffing cactus juice.