Coastal dune ecosystems are highly threatened, and one of the strongest pressures is invasive alien plants (IAPs). Mitigating negative effects IAPs requires development optimal identification mapping protocols. Remote sensing offers innovative tools that have proven to be very valuable for studying IAPs. In particular, unmanned aerial vehicles (UAVs) can promising, especially in study herbaceou...

Smicrostigma warmwaterbergense is described from the summit of Warmwaterberg on Little Karoo Western Cape. It resembles S. viride in its habit and leaves but differs that flowers open during day close at night reproductive parts are fully visible when open. The new species highlights links to Octopoma Zeuktophyllum, which also centered share with a smooth surface, solitary, (sub-) sessile many-...