| Crassothonna clavifolia | |
|---|---|
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Asterids |
| Order: | Asterales |
| Family: | Asteraceae |
| Genus: | Crassothonna |
| Species: | C. clavifolia |
| Binomial name | |
| Crassothonna clavifolia (Marloth) B.Nord. | |
Crassothonna clavifolia (previously Othonna clavifolia) is a species of flowering plant in the family Asteraceae. It is found only in Namibia. Its natural habitat is rocky areas. It is threatened by habitat loss.
This species is a low-growing succulent with grey, trailing branches and squat, cylindrical or barrel-like leaves. [2] The yellow, daisy-like flowers grow on long stalks. [2] The specific epithet, clavifolia, is from the Latin words clava meaning a club and folia meaning leaves, referring to the club-shape of the leaves.
This species was described by Hermann Wilhelm Rudolf Marloth in 1910 [3] as Othonna clavifolia, however, the genus was changed from Othonna by Nordenstam et al., who erected the new genus Crassothonna for a distinct clade of Othonna species. [4] The new name for this species is therefore Crassothonna clavifolia (Marloth) B.Nord.
This species is found from the northwest of the Richtersveld where the sandveld meets the Gariep River towards the southern Namibian coast. [2] This succulent is found in sandy deserts sometimes growing among rocks. [2]
The species was classified in 2004 by the IUCN as Least Concern, [1] although recent concern has been expressed about commercial looting of this plant as part of the succulent plant market. [5] [6]
Aloidendron dichotomum, formerly Aloe dichotoma, the quiver tree or kokerboom, is a tall, branching species of succulent plant, indigenous to Southern Africa, specifically in the Northern Cape province of South Africa, and parts of Southern Namibia.
The Brandberg is Namibia's highest mountain.
Aloe arborescens, the krantz aloe or candelabra aloe, is a species of flowering succulent perennial plant that belongs to the genus Aloe, which it shares with the well known and studied Aloe vera. The specific epithet arborescens means "tree-like". Aloe arborescens is valued by gardeners for its succulent green leaves, large vibrantly-colored flowers, winter blooming, and attraction for birds, bees, and butterflies.
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.
Lomanthus fosbergii, synonym Talamancalia fosbergii, is a species of flowering plant in the family Asteraceae endemic to Ecuador. Its natural habitat is subtropical or tropical moist montane forests. It is threatened by habitat loss. It was first described by José Cuatrecasas in 1953 as Senecio fosbergii. The genus Lomanthus is placed in the tribe Senecioneae.
Aloe comosa is a species of flowering plant in the Asphodelaceae family. It is commonly called Clanwilliam aloe) and is endemic to South Africa.
Gonialoe dinteri, the Namibian partridge aloe, is a species of flowering plant in the Asphodelaceae family. It is native to arid areas of Angola and Namibia.
Aloidendron pillansii, formerly Aloe pillansii, the giant quiver tree or bastard quiver tree, is a large, branching species of succulent plant indigenous to southern Africa. It is regarded as critically endangered.
Rune Bertil Nordenstam is a Swedish botanist and professor emeritus at the Swedish Museum of Natural History in the Department of Phanerogamic Botany. He has worked with Colchicaceae, Senecioneae and Calenduleae, was the editor of Compositae Newsletter newsletter since 1990, and is a Tribal Coordinator for The International Compositae Alliance with responsibility for the tribes Calenduleae and Senecioneae.
Crassothonna capensis, also known as little pickles (USA), ruby necklace (Australia), Cape aster, Cape Othonna, and Bobbejaankool (Afrikaans), is a species of the genus Crassothonna previously (Othonna) in the family Asteraceae, and is a native of the Eastern Cape of South Africa. It is a native highveld species that originates from the southern Drakensberg region.
Curio archeri, syn. Senecio toxotis is a species of succulent plant in the family Asteraceaethat is indigenous to the south-western Cape, South Africa.
Monoculus is a genus of succulent plants in the pot marigold tribe within the sunflower family, split from the genus Osteospermum by Bertil Nordenstam in 2006.
Senecio cadiscus is a species of aquatic flowering plant in the aster family, Asteraceae. It is endemic to the Western Cape of South Africa, where it grows in vernal pools. It was at one time classified as Cadiscus aquaticus, the only species in the monotypic genus Cadiscus, but molecular phylogenetic analysis showed that it is nested within Senecio. It is a floating or emergent plant with small narrow leaves and white-rayed flowers. Its populations are small and fragmented, and are declining. The plant is threatened by grazing and trampling by livestock, invasive plants, reclamation of wetlands and eutrophication from fertilizer runoff. The International Union for Conservation of Nature has consequently rated it as "critically endangered".
Microloma is a small genus of Ceropegia-like twiners and twiggy bushes occurring in mainly arid or fynbos regions in South Africa. They are generally nondescript when not in bloom, but the flowers of most species are incongruously decorative.
Inuloides refers to a genus of African plants placed in the marigold tribe within the daisy family. It is now considered to be part of the genus Osteospermum.
Protea sulphurea, also known as the sulphur sugarbush, is a flowering plant of the genus Protea in the family Proteaceae, which is only known to grow in the wild in the Western Cape province of South Africa. A vernacular name for the plant in the Afrikaans language is heuningkoeksuikerbos or Skaamblom.
Caputia is a small genus of flowering plants in the family Asteraceae, native to South Africa. It may be of hybrid origin. Species in this genus were formerly considered part of the genus Senecio.
Crassothonna is a genus of flowering plants belonging to the family Asteraceae.
Crassothonna agaatbergensis is a species of the genus Crassothonna in the family Asteraceae, and is found only in the northern part of the Skeleton Coast in the Kaokoveld Centre of Endemism, northwestern Namibia.
Adromischus filicaulis is a perennial, succulent plant in the family Crassulaceae. It is commonly called brosplakkies in Afrikaans. The species is endemic to South Africa and Namibia.
