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Pedunculate oak behind the farm in Manthorpe in Manthorpe

There is one pedunculate oak (Quercus robur) behind the farm in Manthorpe in Manthorpe (county of Lincolnshire).

This tree is called "The Bowthorpe Oak". This oak at Bowthorpe Farm near Manthorpe village is the biggest girthed Pedunculate Oak in the UK. Only two Sessile Oaks have a marginally larger girth, but their trunks are more ruined by time. The age of the Bowthorpe oak is disputed. There has been some research done on the tree's growth rings in the 1970s, but as the tree is totally hollow, this can only be done for the outer shell of wood (information Jeroen Pater - Monumentale Bomen in Europa, 2006). The growth of these outer rings has been extrapolated and the oak was estimated to be about 550 years old, so now nearing 600 years. An old source, a notation by a Mr. Howell at the back side of a gravure of the tree of 1804, writes that the tree was hollow and had a girth of 37 ft (11.3 m). The slow growth of the girth since then made several writers think the tree could be 1000 years old. It is not possible to be sure of the age, but a margin of 600 - 1000 years seems to be fairly safe.

Height

The height was measured more than once:
YearHeightMeasurementMeasurement method
2006-04~12.00 m Jeroen PaterMeasurement method unknown
2006-04-06~15.00 mJeroen PaterMeasurement method unknown

Each measurement can be done with varying accuracy.

Age

The age of the tree was estimated by these persons:
YearPlanting or germination yearAgeMeasurement
Oct 1, 20111012 ± 101002 ± 10 yHenk van Boeschoten
Nov 8, 20121200 ± 200814 ± 200 yJeroen Philippona

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The Bowthorpe Oak (pedunculate oak "3478")

Farm in Manthorpe, picture by Henk van Boeschoten

Farm in Manthorpe, picture by Henk van Boeschoten

Farm in Manthorpe, picture by Henk van Boeschoten

Farm in Manthorpe, picture by Henk van Boeschoten

Farm in Manthorpe, picture by Henk van Boeschoten

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