A field in County Kildare once took its name from a single thorn bush, and that bush took its name from a saint. The place is called the Bush Field, or was, and the bush itself was known as Sceach Phádraig, Saint Patrick's Bush, a whitethorn that stood at the southern end of a graveyard near the old church at Donore. It no longer exists. No visible surface trace survives, which makes it a curiosity of a particular kind: a named, mapped, remembered thing that has entirely vanished, leaving only the memory of the name behind.

Whitethorn, or hawthorn, carries a long and layered significance in Irish tradition. Solitary thorns were frequently associated with holy wells, saints, and the older category of fairy trees, and the impulse to attach a well-known saint's name to one was not unusual. What is notable here is how formally this bush was acknowledged. When the first edition of the Ordnance Survey six-inch map was produced in 1838, the bush was considered significant enough to be marked, standing to the south of a church that itself occupied an early ecclesiastical site. The scholar Michael Herity, writing in 2002 as part of the Ordnance Survey Letters project, recorded it as an old whitethorn, citing the Irish name and noting that the surrounding field had come to be known by the bush's presence. That a single plant could give a field its identity across generations, and then disappear without leaving so much as a stump, says something about how thinly some local knowledge is carried forward.