Only a few of these were blooming (literally 10 out of 100,000 plants I saw) - I think it was because they were alongside a road with some construction going on - probably resulting in a bit of water spraying and runoff which kicked these into flowering mode?
Really cool to look at BUT ABSOLUTELY A PAIN to get pricked by of of these! It was really hard and painful to remove.
Smoke Tree Wash.
Smoke Tree Wash, along park highway.
Along park highway, in the basin.