[kustard (Simon)]

I'm trying to identify this plant. It looks very familiar to me and I'm pretty sure it's a bit of a weed. We have some growing in the common area of our complex, it appeared about 3 months ago. I'd like to get rid of it but I want to make sure of what it is before I do.

I've tried to google for it but all I get is Boneseed or Fireweed and it's not either of those two.

The plant itself is about 1 meter tall, quite woody and hardy. The leaves are long and thin with spike like edges. The flowers are yellow/orange with 8 petals. There is a distinct smell when you break off a bit of the plant.

Any ideas?