@Goose : I used to see them on the mountain slopes above Stellenbosch as well, particular in shady, damp valleys.
On our walks during "exercise time" on Napier Mountain - we've been discovering hidden gems - sometimes right under our feet 
These little plants were nearly stepped on....they were probably between 30 - 40mm in size.
From Wikipedia:
Drosera capensis, commonly known as the Cape sundew,[1][2] is a small rosette-forming carnivorous species of perennial[3] sundew native to the Cape in South Africa. Because of its size, easy to grow nature, and the copious amounts of seed it produces, it has become one of the most common sundews in cultivation, and thus, one of the most frequently introduced and naturalised invasive Drosera species.
When insects are first trapped, the leaves roll lengthwise by thigmotropism toward the center. This aids digestion by bringing more digestive glands in contact with the prey. The plant leaf surrounds the prey within an hour while tentacles continue to move to further trap the prey. Digestion takes well over 6 hours after a prey's original ensnarement. The plant has a tendency to retain the dead leaves of previous seasons, and the main stem of the plant can become quite long and woody with time.
The plant captures their prey by luring it through the dazzling digestive secretions produced on the tentacles of the leaves. The secretion acts on the one hand as a visual signal, as it shines in the sun and shines through the red tentacle tip, on the other hand, it is also a chemical attractant that attracts insects.