Question: Are Oxalis and Lithophragma both found in South Africa?

Context paragraphs:
Oxalis bowiei: Oxalis bowiei, Bowie's wood-sorrel, red-flower woodsorrel, or Cape shamrock, is a plant from the genus "Oxalis", which is native to what was Cape Province and Natal in South Africa.  It has also been naturalized in Australia.

Fauna of South Africa: The fauna of South Africa is varied, but largely typical of the ecosystems of Africa.  South Africa is ranked sixth out of the world’s seventeen megadiverse countries.  Many endemic species are unique to South Africa and are found nowhere else in the world.  South Africa is among the world leaders in conservation, though there are several significant conservation challenges which South Africa needs to resolve.

Oxalis luteola: Oxalis luteola is an "Oxalis" species found in South Africa.  It was first described in 1794.

Oxalis depressa: Oxalis depressa is an "Oxalis" species found in South Africa.  It was first described in 1834.

Oxalis obliquifolia: Oxalis obliquifolia is an "Oxalis" species found from Ethiopia to South Africa.

Oxalis versicolor: Oxalis versicolor or candy cane sorrel is an "Oxalis" species found in South Africa.

Lithophragma: Lithophragma is a genus of flowering plants containing about nine species native to western North America.  These plants are known generally as woodland stars.  The petals of the flowers are usually bright white with deep, long lobes or teeth.  Each petal may look like three to five petals, when at closer inspection the lobes fuse into a single petal at its base.  Most species reproduce via bulblets instead of seeds.  "L. maximum" is a federally listed endangered species.

Oxalis purpurea: Oxalis purpurea is a species of flowering plant in the woodsorrel family known by the common name purple woodsorrel.  It is native to southern Africa, including South Africa, but it is known on most continents as an introduced species.  It is cultivated as an ornamental plant.  This perennial herb grows from bulbs and produces a few basal leaves and flowers.  The leaf is made up of three hairy leaflets of various shapes which are dark green in color, turning streaked and spotted with brown as they dry.  The solitary flower arises on a stemlike peduncle and has five petals which may exceed two centimeters in length.  The flower may be white to pink or purple-red.

Oxalis: Oxalis is a large genus of flowering plants in the wood-sorrel family Oxalidaceae comprising about 800 of the 900 known species in the family.  The genus occurs throughout most of the world, except for the polar areas; species diversity is particularly rich in tropical Brazil, Mexico and South Africa.

Oxalis glabra: Oxalis glabra is a member of the wood-sorrel family, Oxalidaceae.  It is only one of the 800 total species belonging to this family.  The plant is commonly known as "finger-leaf" due to its trifoliate leaf structure.  This trifoliate structure can be seen in variations throughout all members of the "Oxalis" genus.  However, the particularly narrow leaflets of the glabra plant look more like fingers rather than a common clover.  The plant is native to South Africa and can be found carpeting the ground of woodlands and bushlands.

Supporting paragraphs: Oxalis Lithophragma
Answer: no