The Craigends Yew (NS4199566134) is an ancient European layering yew ( Taxus baccata ) growing next to the River Gryffe in what were the grounds of the Craigends Estate, Houston in Renfrewshire, Scotland. Estimates put its age at around 500 to 700 years old and it is one of the largest and oldest examples of a heritage layering yew in Scotland. [1] [2] [3]
The Ancient Tree Inventory records the Craigends Yew as tree number 31486. [4] Layering yews differ from the standard growth form in that their branches grow in a pendulous fashion and upon contacting the soil level they root, a process called 'layering' and they may also send up new vertical stems. The central trunk will eventually die and the clones will continue to grow resulting in an increasing circumference and eventually a hollow centre. As layering is not a process involving sexual reproduction the new plants are clones of the parent tree and all of the new individuals formed have identical DNA with each other and the parent. [1]
Estimates for the tree's age are for 600 to 700 years. [2] [5] The clonal grove has achieved a second row of branch layering and the crown has reached a circumference of 328ft or 100m. The parent tree has a girth of 27ft or 8.86m at 30cm. [2] [3]
The tree has a number of epiphytes such as ferns, ivy, liverworts, lichens and mosses that are encouraged by the high humidity maintained by the leaf cover of this evergreen species, supplemented by occasional flooding by the river. The condition of the tree is that it has a hollowing trunk, many water pockets in the branch angles, holes in the main trunk, decaying branches in the crown and rotting wood on the ground. [4] A number of dormant buds on the horizontal branches are producing vertical growth of branches of varying sizes.
The tree lies just off a public footpath and it can also be viewed from the path through the park on the opposite side of the River Gryffe. It has been subjected to a degree of vandalism in the past, but in 2018 a conservation programme removed several trees from within the grove to reduce shading and cleared much of the surrounding scrub vegetation to improve access. The tree grove is in good health and has space to expand further on two sides as a housing estate fence confines it to the east and the River Gryffe does so to the north. It is possible to enter as a path has been cut through with only minor damage to the grove itself.
A very rare growth form is where the original parent tree forms a grove through the roots, rather than the stems, throw up clonal trees as suckers as with the Clan Fraser tree at Stratherrick near Fort Augustus. [7] A typical yew tree growth form is the Defynnog Yew in Powys, Wales.
In 1479 the lands of Craigends were granted to William Cuninghame (d. 1520), the second son of Alexander Cuninghame, the first Earl of Glencairn and this cadet branch established themselves at Craigends until the 20th century. [8] The first fortified manor house was built by William. John Charles Cuninghame, the 17th and final laird died in 1917 and the estate passed to Alison Cuninghame, his widow. Alison died in 1958 and the estate then was inherited a nephew who sold the estate to the developers Taylor Woodrow. In 1971 the mansion house was demolished and by 1973, Taylor Woodrow had started construction on the first of what would be many housing estates within the grounds. [5]
In 1818 the estate is recorded as being ..adorned with pleasant orchards and gardens, the seat of the ancient family [9] and it may be that the Craigends Yew was amongst the first plantings on the estate by the Cuninghames in who held these lands from at least the time of Alexander Cuninghame (1426–1488), father of William, the first laird. [10]
In 2016 the Craigends Yew was shortlisted for Scotland's Tree of the Year by the Woodland Trust.
Other examples of ancient layering yews can be found at Ormiston, Traquair House, Whittingehame and Broich, near Kippen. [11]
Houston, is a village in the council area of Renfrewshire and the larger historic county of the same name in the west central Lowlands of Scotland.
Craigends is a residential area in the civil parish of Houston and Killellan in Renfrewshire, Scotland lying south of the River Gryffe and on the banks of the River Locher. Craigends is on the south-eastern edge of the village of Houston, bordering the parish's other village, Crosslee. As with most of Houston, Craigends is predominantly a commuter settlement.
Taxus baccata is a species of evergreen tree in the family Taxaceae, native to Western Europe, Central Europe and Southern Europe, Northwest Africa, northern Iran, and Southwest Asia. It is the tree originally known as yew, though with other related trees becoming known, it may be referred to as the common yew, English yew, or European yew. It is primarily grown as an ornamental. Most parts of the plant are poisonous, with toxins that can be absorbed through inhalation and through the skin; consumption of even a small amount of the foliage can result in death.
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