Pampas grass or pampas-grass or Pap’s grass are common names for several similar-looking, tall-growing species of grass.
Cortaderia selloana is native to southern South America, including the Pampas region after which it is named.
It is widely distributed throughout the world as a cultivated ornamental plant. And it is common in the yards on Vancouver Island where I’m at right now.
In fact, it’s my favourite of the ornamental plants here. Tall, impressive, and pretty.

That said, many gardeners hate the stuff, considering it an invasive weed. It’s difficult to manage.
Click PLAY or watch a short montage on YouTube.

