Jacobsenia, a small genus of just three species, is found in the northern part of the Western Cape Province, extending slightly into the Northern Cape Province, South Africa. The small shrublets of J. kolbei bear white flowers (occasionally yellowish or rarely purplish) on long, erect, brown stems. The scented flowers open in the morning and close in the evening. J. hallii is much more compact but rare and difficult to flower in cultivation. Both species are active in winter and will tolerate a range of soils.