It looked something like "Witches' Broom" which I have only ever seen on broad-leaf trees. Here it is seen on Norway Spruce.
Maybe it looks something like a drey, but it was growing.
No identification made yet.
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I also thought it only grew on broad leaved tree's,I would have said a nest which could have grass growth in it.
I am fairly sure they do grow on conifers in fact I think many dwarf conifers are derived from witches broom. I am no tree expert though.
Witches' Brooms and similar are a mutation in the tree, known as galls "an abnormal growth produced by a plant...under the influence of another organism" (http://www.british-galls.org.uk/). There are various causes, e.g. gall midge, mite, virus, bacterial infection etc.
They are known to occur on spruces.
OPAL Community Scientist
Yorkshire and Humber
Witches brooms are not uncommon on conifers - they are just not as visible as conifers are not deciduous and the 'broom' remains hidden in the foliage. Around Inverness, they've been seen on Scots Pine, Larch, and Norway spruce.
Great comments. Thanks for providing so many details.
Lat/Lng: 50.5068, -4.1925
OS grid ref: SX446697
One-time port, on the upper tidal reaches of the River Tamar, that served the copper-mining industry there.