I saw this growing out of the damaged bark of a tree about two meters off the ground.
No identification made yet.
No interactions present.
For someone to have tucked it in there; either as a joke, or for some personally-significant reason.
... that it looks more like something fallen or tucked, rather than something growing.
Perhaps the Poster would go back in a few days and tell us if it has wilted?
How to take close-ups with cheap phone and hand-lens:
Field Guides for Budding Botanists:
Lat/Lng: 54.89113461886, -5.8473819494247
OS grid ref: NW533619