The artichoke is actually the bud of a thistle—a flower. The leaves (called “bracts”) cover a fuzzy center called the “choke”, which sits on top of a meaty core, called the “heart”. The heart is completely edible (and amazingly delicious)
The heart is completely edible (and amazingly delicious). The fuzzy choke is too fibrous to eat in regular artichokes, but edible in baby artichokes. All but the innermost leaves are tough and you have to scrape them with your teeth to eat the tender parts.