Answer by John Brew:

I find it very interesting that Aloe polyphlla spirals either

or counterclockwise

It is a discrete genetic trait in these plants.

PS – these plants are endemic to Lesotho but I took these photos at Paloma garden in New Zealand about ten years ago.

One other very interesting plant is the Bristlecone pine (pinis longaeva) which I have been privileged to see a few times. Here is a great specimen at Great Basin National Park, Nevada, USA.

What are the most original plants you can remember?