Observed: 6th September 2014
Added: 15th November 2014
These pictures were taken early in the morning, about 5.00am. Sweetly scented. Two subspecies and a variety to chose from. The lady at the guesthouse was very excited about these and told me they grow only in one place in Calvinia - at a disused library in town.
I don't even know if I am right about it being a hesparantha, so I am not going to hazard a guess at the rest. :)