Often one sees sap coming out of an old tree, usually where it is healing up, but usually these "bleeding" areas heal up quite quickly. Recently I came across a most remarkable yew tree when I visited the ancient village of Nevern in Pembrokeshire. It has a 6th century church (St Brynach's Church) and in the churchyard there are a number of ancient yew trees (Taxus baccata). One of these yews near to the gate is called the "Bleeding Yew" which is about 700 years old and here are some photos I took of it. It has a blood-red sap running out of it which has the consistency of blood - though it dries pink rather than brown. I dipped my finger in it and there wasn't any distinctive smell or stain, but as people say that most parts of the yew tree are poisonous, I didn't taste it.
There are many myths about why the Nevern yew tree bleeds: some say that as Jesus was crucified on a cross it is bleeding in sympathy and thoers say that it is reflective of the tree of Life in the Garden of Eden. But that wouldn't explain why this yew tree in particular is bleeding. One myth says that a monk was hanged on this tree for a crime of which he was innocent and the tree is protesting his innocence. Some say, more politically, that it won't stop bleeding until there is a Welsh Prince installed at Nevern or even that it will bleed until world peace is achieved.
The church at Nevern is well worth a visit for the bleeding yew, but also because the church has some stone carvings which are over a thousand years old, such as the "Braided Cross Stone" (pictured here) which, like the bleeding yew, has been ascribed many meanings with two cords apparently being woven together to make the cross. There is an even older carving, the Maglocunus stone, which throws light on the version of ancient Celtic once used in these parts of Wales, called Ogham. This stone wasn't preserved for itself standing vertically but was incorporated horizontally into the church as a windowsill.