Pyracantha removal

Hi All

There is a a small Pyracantha shrub growing on the edge of a bed, not sure how it got there as I doubt anyone specifically planted it.

Anyway, for the sake of symmetry I want to remove it.

What is the best way to kill it off?
It looks like it would be difficult to dig out, as the roots are intertwining with a Heavenly Bamboo plant.

 

Shame. Pyracantha provide flowers for bees and berries for birds. Bamboo just spreads and makes a nuisance of itself. But just chop the pyracantha off at ground level and wait for the odd shoot to appear and chop that off at ground level. It can’t live long with no leaves. Shame.

 

Just watch out for the thorns on the pyracantha.
Heavenly (Sacred) Bamboo called Nandina domestica is not a bamboo as such it just looks similar.
RHS describe it as "A small, upright, elegant evergreen shrub with a bamboo-like habit to around 2m in height, with compound leaves and lanceolate leaflets which are purplish when young and in winter. Small white flowers in large panicles appear in summer, followed by red berries"