Othonna is a genus of approximately 90 species of succulent or subsucculent perennial herbs or shrubs, with its center of diversity in the Greater Cape Floristic Region (GCFR) of South Africa but some species' ranges include southern Namibia, Angola, and Zimbabwe. The genus was established by Linnaeus in 1753 containing 14 species, however, of those original species, only four are still retained in Othonna, while the others have been transferred to different genera including Cineraria, Euryops, Hertia, Ligularia, Senecio, and Tephroseris. The genus Othonnna is known to be monophyletic. In 2012, a new genus Crassothonna B. Nord. was erected with 13 species transferred from Othonna. A complete modern taxonomic treatment of the genus is being undertaken by the Compton Herbarium and the South African National Biodiversity Institute. The first part, a revision of the Othonnna bulbosa group, was published in 2019.
Euryops is a genus of flowering plants in the sunflower family. They are native mostly to rocky sites in southern Africa, with a few species in other parts of Africa and on the Arabian Peninsula. They produce daisy-like flowerheads from fern-like foliage. The name Euryops is probably a contraction of the Greek words ευρυς meaning 'wide,' and ὄψις meaning 'eye,' possibly referring to the large flowerheads compared to the narrow leaves.
Acharia is a monotypic genus of flowering plants in the family Achariaceae. The sole species is Acharia tragodes, which is endemic to the Cape Provinces in South Africa.
Euryops pectinatus, the grey-leaved euryops, is a species of flowering plant in the family Asteraceae, endemic to rocky, sandstone slopes in the Western Cape of South Africa.
Steirodiscus is a genus of South African plants in the groundsel tribe within the Asteraceae. It is endemic to the Cape Provinces.
Didymaotus is a monotypic genus of flowering plant belonging to the family Aizoaceae, containing the single species Didymaotus lapidiformis. The plant is also known by the names stone plant and beeskloutjie. It occurs natively in the arid regions of Tanqua Karoo, near Ceres in the Western Cape. The generic name is taken from the Greek words didymos, meaning double, and aotus, meaning flower; the plant that bears two flowers. The specific epithet lapidiformis means stone-like, as it is not easily seen, blending in with its surroundings.
Penaea sarcocolla is a species of shrub in the genus Penaea. It is endemic to the Western Cape, along the coast up to Cape Agulhas and extending inland to Franschhoek, Hottentots Holland Mountains, Villiersdorp and Genadendal. It is also known as the Cape fellwort.
Ixia scillaris is a perennial cormous flowering plant in the genus Ixia. It is endemic to a small portion of the Fynbos in the Western Cape.
Hemimeris sabulosa is a species of flowering plant in the figwort family. It is endemic to the Cape Provinces of South Africa.
Willdenowia incurvata is a species of flowering plant in the genus Willdenowia endemic to the Fynbos region of the Northern Cape and Western Cape. It is also known as the sonqua sunreed; or sonkwasriet in Afrikaans.
Crassula umbella is a succulent plant species in the genus Crassula. It is endemic to the Cape Provinces of South Africa.
Stachys rugosa is a species of perennial herb in the genus Stachys.
Lebeckia plukenetiana is a species of flowering plant in the genus Lebeckia. It is endemic to the Western Cape of South Africa.
Heliophila coronopifolia is a species of flowering plant in the genus Heliophila. It is native to the Northern Cape and Western Cape provinces of South Africa.
Justicia cuneata is a species of subshrub in the genus Justicia. It is native to Namibia and the Cape Provinces of South Africa.
Limeum africanum is a species of flowering plant in the genus Limeum. It is endemic to Southern Africa. It is also known by the names common lizardfoot and koggelmandervoet; Afrikaans for the foot of a lizard from the genus Agama.
Lapeirousia pyramidalis is a species of geophyte in the genus Lapeirousia. It is endemic to the Cape Provinces of South Africa. It is also known as the pyramid kabong.
Massonia bifolia is a species of geophyte in the genus Massonia. It is native to southern Namibia and to the western Cape Provinces of South Africa.
Anacampseros papyracea is a species of succulent plant in the family Anacampserotaceae. It is endemic to Southern Africa.
Euryops ursinoides is a highly endemic and vulnerable species from South Africa. It is in the daisy family.
