[1] It is located in Florence Court demesne in County Fermanagh, Northern Ireland and is cared for by the National Trust.

In 1767 George Willis, a local farmer, retrieved a pair of unusual yew seedlings from the slopes of Cuilcagh mountain in the Aghatirourke townland, near Florencecourt, County Fermanagh.

The specimens Willis discovered had a 'fastigiated' or vertical habit in contrast to the wider spread of the common yew seen throughout the British Isles and Europe.

They lose the Irish yew's distinctive upright habit, although specimens raised from seed may display minor variations in foliage colour.

[1] The Irish yew is common in churchyards throughout the world and it is believed almost all specimens are descended from the tree at Florence Court.