Need help identifying
Ist post - please forgive if I'm doing this wrong. I need to identify a plant that crosses our property boundary. Overall it is about 3 metres tall, fairly straight stalks covered in tight spherical clusters of tiny white flowers, the clusters are very tight and roughly 3-4 cms in diameter. The leaves are about 1-2 cms in length, simple, entire, dark green above and below, and some have vague points to the ends. I have included a close up of a piece. Any help woud be appreciated before the neighbour cuts it down!