Robertson Vexator?

Robertson Vexator?

Observation - Robertson Vexator? - Southern Africa. Description: Observed on the top of the mountain on the Hermit Trail

Observed on the top of the mountain on the Hermit Trail, what seemed to me at the time to be the highest point on the trail.
I can only recall seeing 1 or 2 plants and they were right next to the trail - you can't miss them.
The surroundings are pretty much unspoilt in my humble opinion.
No obvious aliens (pines, hakea, gums) up on the mountain top that I noticed.
NEW: Only 1 large sprawling plant seen, too much surrounding vegetation to see clearly whether it's 1 or 2 plants. Probably 1.