Hazel (Coll)

In Irish myth, nine hazel trees grew at the source of a sacred well, dropping nuts into the water that the Salmon of Knowledge ate — whoever later ate that salmon absorbed all the world's wisdom in a single taste. Hazelnuts themselves became a folk symbol of concentrated insight, small and dense with meaning.

As a tree sign, your theme is gathering knowledge and turning it into something usable — you tend to synthesize faster than people expect, connecting a stray fact to the bigger pattern it belongs to. Your real strength is teaching what you've learned rather than hoarding it.