Gordon Douglas Rowley

Echinopsis pachanoi, synonyms including Trichocereus pachanoi and Trichocereus macrogonus var. pachanoi, is a fast-growing columnar cactus found in the Andes at 2,000–3,000 m (6,600–9,800 ft) in altitude. It is one of a number of kinds of cacti known as San Pedro cactus. It is native to Ecuador, and Peru, but is also found in Bolivia, Colombia, central Chile, the Canary Islands, and mainland Spain, and is cultivated in other parts of the world. Uses for it include traditional medicine and traditional veterinary medicine, and it is widely grown as an ornamental cactus. It has been used for

Pilosocereus (from Latin, "hairy cereus") is a genus of cactus native to the Neotropics. Tree cactus is a common name for Pilosocereus species. The genus Pseudopilocereus is a synonym of this genus. For many years, the illegitimate name Pilocereus was used for this genus, although properly a synonym for Cephalocereus. The subdivision of the genus has varied very widely, resulting in very different numbers of species being accepted. The commonly cultivated Pilosocereus pachycladus (syn. Pilosocereus azureus) is a blue cactus with hairy areoles that emit golden spines.

Echinopsis lageniformis, synonyms including Echinopsis scopulicola and Trichocereus bridgesii, is a cactus native to Bolivia. It is known as the Bolivian torch cactus. Among the indigenous populations of Bolivia, it is sometimes called achuma or wachuma, although these names are also applied to related species such as Trichocereus macrogonus which are also used for their psychedelic effects.

Aloe tormentorii is a species of flowering plant in the family Asphodelaceae. It is sometimes referred to by the common name Mazambron. This Aloe is endemic to the island of Mauritius, in the Indian Ocean. It is one of only two Aloes to naturally occur in Mauritius - the other being the tall growing Aloe purpurea. It is part of a group of aloes which bear fleshy berries, and were therefore classed as a separate group, "Lomatophyllum". Within this group, it is closely related to Madagascan Aloe occidentalis (which can be distinguished by having longer leaves, shorter inflorescence, and longer

Aloe citrea is a species of Aloe found in South Eastern Madagascar.

Gasteria batesiana, or knoppies gasteria, is a species of succulent plant native to the inland escarpment in the far north-east of South Africa.

Echinopsis angelesiae, synonym Soehrensia angelesiae, is a species of cactus native to Argentina.

Aloe prostrata (previously Lomatophyllum prostratum) is a species of Aloe indigenous to Antsiranana Province (Ankarana), Madagascar. Here it grows in shady forests overlying limestone.

Aloe belavenokensis (previously Lomatophyllum belavenokense) is a species of Aloe only found in southern Madagascar. It is found near the small Village of Belavenoka.

Aloe aldabrensis is a species of flowering plant in the family Asphodelaceae. Previously known as Lomatophyllum aldabrensis this Aloe is sometimes referred to by the common name Aldabra Aloe. It is endemic to the Aldabra islands in the Indian Ocean, where it can still be found in coastal scrub on limestone-based soil.

Agave longiflora (synonym Manfreda longiflora) is a species of flowering plant in the family Asparagaceae that is native to the Lower Rio Grande Valley of Texas in the United States and northern Tamaulipas in Mexico. Common names include amole de río, longflower tuberose, and Runyon's huaco. The type specimens were sent by botanist and photographer Robert Runyon (1881–1968) to the New York Botanical Garden in 1921. Consequently, the species was initially placed in a monotypic genus named in his honour, Runyonia, by Joseph Nelson Rose. The species has been placed in the genus Manfreda, now

Pilosocereus polygonus is a species of cactus (family Cactaceae). Like all species in the genus Pilosocereus, it has a shrub- or tree-like growth habit. It has been treated very differently at times. In the narrow circumscription adopted here, it is endemic to Hispaniola, a position adopted by Britton and Rose in 1920 and endorsed in a 2019 review of the genus in the Caribbean and northern Andes. Treatments in the late 1990s and early 2000s used a much broader circumscription, which included species now recognized as separate, thus giving P. polygonus a much wider distribution. As of July

Pilosocereus leucocephalus, called old man cactus (along with a number of similar species), old man of Mexico, tuno, and woolly torch, is a species of cactus in the genus Pilosocereus, native to Mexico and Central America. It has gained the Royal Horticultural Society's Award of Garden Merit. Pilosocereus leucocephalus functions as a keystone species in dry landscapes found in Mesoamerica. The fruit this cactus produces is relied upon as a source of hydration and sugar in arid areas by frugivores such as birds, bats, and even some reptiles.

Pilosocereus catingicola is a flowering plant in the family Cactaceae that is endemic in northeastern Brazilian states of Rio Grande do Norte, Pernambuco, Alagoas, Sergipe, Paraíba, Bahia. The plant is bat-pollinated, by Goldman's nectar bat.

Pilosocereus piauhyensis is a species of plant in the family Cactaceae. It is endemic to Brazil, in the states of Piauí, Ceará, and Rio Grande do Norte. Its natural habitat is rocky areas.

Pilosocereus pentaedrophorus is a species of tree cactus found in Bahia and Minas Gerais, Brazil.

Pilosocereus lanuginosus is a species of flowering plant in the cactus family Cactaceae, native to Aruba, Bonaire, and Curaçao in the Leeward Islands. It was first described by Carl Linnaeus in 1753 as Cactus lanuginosus.

Pilosocereus glaucochrous is a species of plant in the family Cactaceae. It is endemic to eastern Brazil, in central Bahia state. Its natural habitat is subtropical or tropical dry forests. It is threatened by habitat loss.

Pilosocereus floccosus is a species of plant in the family Cactaceae. It is endemic to Brazil, in Bahia and Minas Gerais states. Its natural habitats are subtropical or tropical dry forests and rocky areas. It is threatened by habitat loss.

Pilosocereus chrysacanthus is a species of Pilosocereus found in Mexico to Honduras

Pilosocereus auristetus is a species of cactus native to Minas Gerais, Brazil and was first described in 1957.

Pilosocereus arrabidae is a species of plant in the family Cactaceae. It is endemic to Brazil. Its natural habitats are rocky shores and sandy shores. It is threatened by habitat loss.

Matucana madisoniorum is a species of Matucana found in Peru.

Haworthiopsis is a genus of succulent plants in the subfamily Asphodeloideae. The genus was previously included in Haworthia. Species in the genus are typically short perennial plants, with leaves often arranged in a rosette and frequently having raised white markings. The two-lipped flowers are borne on a tall stalk and are small – less than 17 mm (0.7 in) long – and pale in colour. Many species are cultivated as house plants or by succulent enthusiasts.

Echinopsis tacaquirensis, is a species of Echinopsis cactus found in Bolivia.

Echinopsis huascha, synonym Soehrensia huascha, is a species of Echinopsis in the family Cactaceae, found in north western Argentina.

Echinopsis cuzcoensis is a species of Echinopsis cactus found in Peru.

Visit the page for more details.

Visit the page for more details.

Visit the page for more details.