Pasta with Artichokes is more lightly to be Globe Artichokes, not related. Globe Artichokes are Thistles, Jerusalem Artichokes are Sunflowers.
I didn't know artichokes were from the flowers. I knew nothing about them. Yeah the pasta probably didn't really have a lot in it anyway, I imagine just a small amount to call it pasta with artichoke. I didn't remember it tasting much different then regular pasta, but it was quite a bit more expensive so I only tried it a couple times when it was on sale.