verb
adhere
ad-HEER/ədˈhɪr/
To remain firmly attached to something.
The label adheres firmly to the clean glass jar.

Etymology
The pieces mean “stick to,” an image that applies to both surfaces and commitments. Early English use often concerned loyalty to a leader or cause; adhering to a rule similarly means holding firmly to it.
In context
one set of leaves that are flat and adhesive they can actually adhere to the trunk of a tree
More examples
- All competitors must adhere to the same rules.
- She adhered to her principles despite pressure to compromise.
- Damp leaves are adhering to the soles of my shoes.