This is the Cape Plants description of H retusa. Acaulescent succulent, usually with solitary rosettes to 15 cm diam. Leaves yellowish green to brown, somewhat translucent, smooth, abruptly recurved, flat above. Flowers white. Aug.--Sept. Sparse grassland and rock outcrops in coastal renosterveld, LB (Swellendam to Mossel Bay). Everything fits except that the rosettes are usually solitary. There was the occasional solitary plant, but most of them were matlike. Help please!
Grows in rocky ridges in fynbos and under bushes in karoo veld.