The deed is recorded with the care of a surveyor. In Targum Pseudo-Jonathan on Genesis 23:17, the Aramaic lists what Abraham now owns: the field, and the cave that is therein, and all the trees that were in the field, in all the boundaries thereof round about.
Every tree. This phrasing reflects ancient Near Eastern property law, where buying a field did not automatically include the trees unless they were specified. The Targum of Pseudo-Jonathan preserves the legal thoroughness: Abraham has bought the field, the cave inside the field, every tree standing in the field, and every inch of the perimeter.
The location is named — before Mamre. This is the same Mamre where Abraham had hosted the three angels (Genesis 18:1) and where he had first received news that Sarah would bear a son. The field where Sarah is now being buried looks out at the place where her impossible pregnancy was first promised.
The Talmud (Bava Batra 100a, edited c. 500 CE) cites this verse as the source text for how a property sale must list every inclusion, because Ephron's field is the Torah's model contract.
The Maggidim read the precision here as an act of love. Abraham does not want one tree missing from the inheritance he is leaving for Isaac and Jacob. The takeaway: when you leave something to the generations after you, leave it whole. Every tree. Every boundary. Nothing carved out by fine print.