Strange bloom

This is a very strange plant - I think it's a flax, originally from New Zealand. It has massive spiky leaves then shoots out a huge stalk with a comparatively tiny spray of flowers on the end. I thought the flowers were rather disappointing until I looked closer and saw the wonderful orangey pollen. Does anyone know the correct name?
Another fabulous day but still not brave enough for a swim. I was working again today and we made river collages - I gave the children free rein and the results were amazing.Off to water the garden now.