Yesterday I ate hawthorn leaves, wild sorrel, and catkins. Hawthorn leaves, despite being called bread and cheese, taste soft and salady. Not at all like bread and cheese. Wild sorrel is just like domesticated sorrel (not sure I've ever seen this on sale in UK?), tangy, acid, clean. Catkins are dry, floury, just bitter enough to be slightly unpleasant but not enough to be interesting. Not a great eat, but the other two are recommended.