Rooikrans
Acacia cyclops
The Western Cape default. Quick to temperature, very hot coals that fade sooner than the denser woods.
Rooikrans is what most braais at the Cape run on, for a practical reason: after roughly 40 minutes you have coals hot enough for wors and chops. They do not last forever, though — perfect for a 45-to-60-minute braai, wrong for a three-hour potjie.
The acacia originally comes from Australia and has spread along the coast to the point of crowding out indigenous fynbos. Burning rooikrans is, in that sense, conservation work with dinner as a side effect.
Not in a fireplace
Not for the fireplace. Rooikrans is almost always sold only part-dried — the bag is meant for a grid, where the smoke goes away. Indoors that same residual moisture means heavy smoke, a sticky film on the glass and deposits in the flue. Several of the bigger Cape merchants disagree and list rooikrans for indoor use — usually kiln-dried stock. That is the distinction that matters: properly dried yes, the ordinary supermarket bag no.
Buying it
Sold in supermarkets as "Bush Baby Rooikrans" in 7 kg bags; cheaper per kilo from firewood merchants, especially if you buy split logs by the bag rather than pre-packed.