I can tell you what tulip bulbs taste like - not because I have eaten them, but I met several Amsterdammers who had to live on them during the Great Starvation during the war. They told me that they have a disgusting sweet taste and you never want to eat them again. But they can sustain life, at a pinch.
In Dutch they are tulpen, which is nearer to the original Turkish word for a turban, which they are named for. Tulpomanie.