Rebutia is a genus of flowering plants in the family Cactaceae, native to Bolivia and Argentina. They are generally small, colorful cacti, globular in form, which freely produce flowers that are relatively large in relation to the body. They have no distinctive ribs, but do have regularly arranged small tubercles. They are considered fairly easy to grow and they may produce large quantities of seeds that germinate freely around the parent plant.
Cleistocactus is a genus of flowering plants in the cactus family Cactaceae, native to mountainous areas - to 3,000 m (9,843 ft) - of South America. The name comes from the Greek kleistos meaning closed because the flowers hardly open.
In 1984, the International Organization for Succulent Plant Study set up a working party, now called the International Cactaceae Systematics Group, to produce a consensus classification of the cactus family, down to the level of genus. Their classification has been used as the basis for systems published since the mid-1990s. Treatments in the 21st century have generally divided the family into around 125–130 genera and 1,400–1,500 species, which are then arranged in a number of tribes and subfamilies. However, subsequent molecular phylogenetic studies have shown that a very high proportion of the higher taxa are not monophyletic, i.e. they do not contain all of the descendants of a common ancestor. As of August 2023, the internal classification of the family Cactaceae remained uncertain and subject to change. A classification incorporating many of the insights from the molecular studies was produced by Nyffeler and Eggli in 2010.
Pilosocereus is a genus of cactus native to the Neotropics. Tree cactus is a common name for Pilosocereus species. The genera Caerulocereus and Pseudopilocereus are synonyms of this genus.
Eriosyce is a genus of cacti native to Chile.
Aylostera, is a genus of cactus, native to central Bolivia and north western Argentina.
Weingartia is a genus in the family Cactaceae, with species native to Bolivia and Argentina. Molecular phylogenetic evidence suggests that it may be distinct from Rebutia. It is treated as a synonym of that genus by Plants of the World Online as of September 2023, but recognized as an alternative generic name in the third edition of the CITES Cactaceae Checklist. It may also be treated as Rebutia subg. Weingartia.
Cleistocactus winteri is a succulent of the family Cactaceae. Its common name is the golden rat tail. Cleistocactus winteri subsp. colademono, as its synonym Cleistocactus colademononis, has gained the Royal Horticultural Society's Award of Garden Merit.
Rebutia minuscula is a species of cactus from South America found in northern Argentina and Bolivia. It is the type species of the genus Rebutia. As its synonym Rebutia senilis it has gained the Royal Horticultural Society’s Award of Garden Merit. Its cultivars 'Krainziana', 'Marsoneri' and 'Violaciflora' are also listed as having gained the Award of Garden Merit.
Rebutia fiebrigii, the orange crown cactus or flame crown, is a species of flowering plant in the cactus family that is native to exposed rocky plateaux in the Bolivean Andes, at altitudes of 2,100–4,000 m (6,900–13,100 ft) above sea level. It consists of a solitary ball some 15 cm (5.9 in) in diameter, covered in tubercles and silky hairs, with brilliant orange daisy-like flowers. In time these balls multiply to form mounds.
Echinopsis densispina, is a species of Echinopsis found in Argentina.
Lobivia hertrichiana, is a species of Lobivia found in Bolivia and Peru.
Matucana intertexta is a species of cactus in the genus Matucana, native to Peru. It has gained the Royal Horticultural Society's Award of Garden Merit.
Rebutia mentosa, the crown cactus, is a species of cactus in the genus Rebutia, native to Bolivia. It has gained the Royal Horticultural Society's Award of Garden Merit.
Rebutia neocumingii, the Cuming crown cactus, is a species of cactus in the genus Rebutia, endemic to Bolivia. It has gained the Royal Horticultural Society's Award of Garden Merit.
Aylostera pulvinosa, synonym Rebutia pulvinosa, is a species of cactus in the genus Aylostera, native to Bolivia. Aylostera albiflora has been treated as Aylostera pulvinosa subsp. albiflora.
Aylostera pygmaea, synonyms including Rebutia pygmaea, is a species of cactus in the genus Aylostera, native to Bolivia and northwest Argentina. It has gained the Royal Horticultural Society's Award of Garden Merit.
Rebutia steinbachii, called Steinbach's crown cactus, is a species of cactus in the genus Rebutia, native to Bolivia. It has gained the Royal Horticultural Society's Award of Garden Merit.
Lobivia arachnacantha is a species of cactus in the genus Lobivia, native to Bolivia.
Eriosyce paucicostata, the few-ribbed neoporteria, is a species of cactus in the genus Eriosyce, native to southwest Antofagasta in northern Chile. As its synonym Neoporteria paucicostata it has gained the Royal Horticultural Society's Award of Garden Merit.
