Pandanus is a genus of monocots with some 750 accepted species. They are palm-like, dioecious trees and shrubs native to the Old World tropics and subtropics. The greatest number of species are found in Madagascar and Malaysia. Common names include pandan, screw palm, and screw pine. They are classified in the order Pandanales, family Pandanaceae.
Pandanus tectorius is a species of Pandanus (screwpine) that is native to Malesia, Papuasia, eastern Australia, and the Pacific Islands. It grows in the coastal lowlands typically near the edge of the ocean. Common names in English include thatch screwpine, Tahitian screwpine, hala tree and pandanus. The edible fruit is sometimes known as hala fruit.
Pandanus utilis, the common screwpine is, despite its name, a monocot and not a pine. It is native to Madagascar and naturalised in Mauritius and the Seychelles.
Pandanus balfourii, also known as Vakwa bordmer, is a species of plant in the family Pandanaceae, one of four Pandanus species that are endemic to the Seychelles.
Lophosoria quadripinnata(J.F.Gmel.) C.Chr. is a species of fern that, according to DNA molecular analysis, belongs to the family Dicksoniaceae, where it is placed in the genus Lophosoria. It is found in the Americas spanning from Cuba and Mexico to Chile. In Chile it is present in the area between Talca and Aysén including Juan Fernández Islands. In Argentina it grows only in the humid valleys of western Neuquén and Río Negro Province. Diamondleaf fern is a common name. In Spanish it is known as 'ampe' or palmilla, but one has to remember that there are several species of ferns called "palmillas" that have larger or smaller fronds, and which grow in colder climates. It is a medium-sized plant, growing to about 4–5 feet and even though the rhizome does not grow a trunk, it is clearly related to the other tree ferns due to features that were apparently already present in their common ancestor, like 'pneumathodes', and the rhizome which changed from the dorsiventral symmetry typical of the other ferns, to a radial symmetry typical of tree ferns. Their large and multiple pinnate fronds, with the petiole raised adaxially, and the hairs on the rhizome and lower part of the petioles, also resemble those of tree ferns. To identify the species, use the position and characteristics of the spores found on the fertile fronds. The genus already existed in the Cretaceous Period in southern Gondwana according to fossil remains found in Antarctica. The species is well known as an ornamental plant.
Martellidendron is a genus of flowering plants in the family Pandanaceae, native to the Seychelles and Madagascar. They resemble palms, but are not closely related to palms. The genus Martellidendron, was previously recognized as a section of the genus Pandanus in 1951 by Rodolfo Emilio Giuseppe Pichi-Sermolli, Then as a subgenus in 1974. It was finally separated out in 2003 on the basis of phylogenetic studies that used chloroplast DNA sequence data.
Pandanus livingstonianus Rendle is one of some 752 palaeotropical species of dioecious tree in the genus Pandanus, popularly known as Screw pines, and occurs from Angola eastwards across tropical Africa and down the east coast of Southern Africa.
Pandanus rigidifolius is a species of plant in the family Pandanaceae, endemic to Mauritius.
The karuka is a species of tree in the family Pandanaceae and an important regional food crop in New Guinea. The nuts are more nutritious than coconuts, and are so popular that villagers in the highlands will move their entire households closer to trees for the harvest season.
Pandanus whitmeeanus, commonly known as the Samoan pandanus, is a species of Pandanus (screwpine) believed to be native to Vanuatu. It has been introduced to Samoa, Tonga, the Cook Islands, and the Hoorn Islands by Austronesian voyagers. It is also known in Samoan and Tongan as ‘ara ‘āmoa or paogo.
Pandanus aridus is a species of shrub or small tree in the family Pandanaceae. It is native and endemic to Madagascar, found in fragmented locations in the southern third of the country. Pandanus aridus H. St. John is the accepted name, with a synonym of Pandanus toliarensis Huynh.
Pandanus connatus is a species of plant in the family Pandanaceae native to northern Madagascar.
Pandanus dauphinensis a species of plant in the family Pandanaceae. It is native to coastal southeast Madagascar. Some references list Pandanus concretus as the accepted name, with numerous synonyms, including Pandanus centrifugalis, P. dauphinensis, P. erectus and P. madagascarensis. Panadus dauphinensis has cylindric complex fruits (syncarps) 18-20 cm long, and relatively broad leaves 12 cm or more in width with strong cross veining on the upper surface, including near the tip.
Pandanus erectus a species of plant in the family Pandanaceae. It is native to Madagascar, described growing in secondary forest in the Maroantsetra area of NE Madagascar. Some references list Pandanus concretus as the accepted name, with Pandanus centrifugalis, P. dauphinensis, P. erectus and P. madagascarensis as synonyms.
Pandanus spicatus a species of plant in the family Pandanaceae. It is native to Madagascar.
Pandanus columnaris is a dioecious tropical plant in the screwpine genus. It is endemic to Madagascar. The specific epithet, "columnaris", refers to the columnar shape of the crown of the tree. Originally described by S. John as separate species, Pandanus columnaris is now considered a synonym for Pandanus pluriloculatus.
Pandanus concretus is a dioecious tree in the screwpine genus. It is endemic to Madagascar, found in Toliara province. Pandanus concretus is the accepted name, but it has also been called Pandanus centrifugalis, P. dauphinensis, P. erectus and P. madagascarensis.
Pandanus subglobosus is a dioecious tropical shrub in the screwpine genus. It is endemic to Madagascar. The specific epithet, "subglobosus", refers to the nearly-round fruits. The accepted name for this species is now Pandanus oligocarpus.
Pandanus obeliscus is a screwpine, or pandan endemic to Madagascar, Its common name is vacoua en pyramide. It is up to sixty feet in height and up to three feet in diameter at breast height. By reason of its very thick primary growth it may be the most massive (heaviest) of all pandans. P. obeliscus belongs to a section of the genus (acanthostyla) which are collectively called the "coniferoids" which have large linear leaves on the main axis (trunk) which are called "crown megaphylls" and can be up to twelve feet long by six inches in width. As these age, they fall away and are replaced by hundreds of side shoots with very much smaller leaves - six inches long by only about one-half inch in width. which are responsible for giving the tree its conifer-like appearance. The species was first described in 1808. These side branches frequently divide pseudodichotomously. Some taxonomists regard P. obeliscus and P. pulcher to be conspecific.
Pandanus leram is a pandan or screw pine, belonging to the monocot family Pandanaceae. It is endemic to the Andaman Islands and Nicobar Islands south of Myanmar, and the southern coasts of Sumatra and western Java, in Indonesia.
