Where are these common species found?

All three occur on the arid fringes of the Cape Flora in areas that are botanically poorly known. These thus point to a major gap in our geographical understanding of the Flora and will certainly yield new species in other plant families once botanists explore them properly. As can be seen, they all occur in different regions.

Ld osbornei occurs over a large area from Anysberg Nature Reserve to north of Seweweekspoort (half our records of this species are from David Osborne). It occurs on the Witteberg summits of the hills north of the Anysberg-KleinSwartberg range, with a few populations on the Klein Swartberg and on Touwsberg south of it.

Ld touwsrivierensis occurs on the south slopes and flats on the Witteberg hills north of the N2 from Karoopoort to Tweedside.

Ld crassulaefolium occurs on the Hex and Kwadows Mountains on the eastern side of the Hex River valley.

These three species point to the existence of an arid centre of endemism in the Cape Flora that is poorly explored. More botanical exploration is clearly required here.

Then we can look at the new data that we have found: