Robertson Karoo low hills and flats covered in small succulent vegetation, usually growing on rocky shale-based soils. The climate is semi-arid due to the region lying in the rainshadow of the large mountain ranges to the south-west, but the rainfall does tend to occur mainly in winter. This vegetation type has a large number of endemic species and several endemic genera. Robertson Karoo Robertson Karoo is a semi-arid vegetation type, restricted to sections of the Breede River Valley, Western Cape Province, South Africa. It is a subtype of Succulent Karoo (geographically an extension of the "Little Karoo") and is characterised by the
Karoo Karoo is distinctively divided into the Great Karoo and the Little Karoo by the Swartberg Mountain Range, which runs east-west, parallel to the southern coastline, but is separated from the sea by another east-west range called the Outeniqua–Langeberg Mountains. The Great Karoo lies to the north of the Swartberg range; the Little Karoo is to the south of it. The only sharp and definite boundary of the Great Karoo is formed by the most inland ranges of Cape Fold Mountains to the south and south-west. The extent of the Karoo to the north is vague, fading gradually and almost imperceptibly