The Holly is the latest addition to our series on trees, as featured on Test Tube.
Expert Markus Eichhorn explains why it has famously pointy leaves (but only on the lower branches) and why it is associated with Christmas.
We filmed a whole series of tree videos in one day last year and I am gradually uploading them... This is the 10th.
See the whole series here.
I hope to persuade Markus to film another batch soon because they are popular with viewers and he does them so effortlessly!