The Alismatales (alismatids) are an order of flowering plants including about 4,500 species. Plants assigned to this order are mostly tropical or aquatic. Some grow in fresh water, some in marine habitats. Perhaps the most important food crop in the order is the corm of the taro plant, Colocasia esculenta.
The Potamogetonaceae, commonly referred to as the pondweed family, is an aquatic family of monocotyledonous flowering plants. The roughly 110 known species are divided over six genera. The largest genus in the family by far is Potamogeton, which contains about 100 species.
Zosteraceae is a family of marine perennial flowering plants found in temperate and subtropical coastal waters, with the highest diversity located around Korea and Japan. Most seagrasses complete their entire life cycle under water, having filamentous pollen especially adapted to dispersion in an aquatic environment and ribbon-like leaves that lack stomata. Seagrasses are herbaceous and have prominent creeping rhizomes. A distinctive characteristic of the family is the presence of characteristic retinacules, which are present in all species except members of Zostera subgenus Zostera.
Potamogeton is a genus of aquatic, mostly freshwater, plants of the family Potamogetonaceae. Most are known by the common name pondweed, although many unrelated plants may be called pondweed, such as Canadian pondweed. The genus name means "river neighbor", originating from the Greek potamos (river) and geiton (neighbor).
Ruppia, also known as the widgeonweeds, ditch grasses or widgeon grass, is the only extant genus in the family Ruppiaceae, with eight known species. These are aquatic plants widespread over much of the world. The genus name honours Heinrich Bernhard Rupp, a German botanist (1688-1719). They are widespread outside of frigid zones and the tropics.
Lysipomia cylindrocarpa is a species of plant in the family Campanulaceae. It is endemic to Ecuador. Its natural habitat is subtropical or tropical high-altitude grassland.
Micropholis cylindrocarpa is a species of plant in the family Sapotaceae. It is found in Brazil and Peru.
Posidonia is a genus of flowering plants. It contains nine species of marine plants ("seagrass"), found in the seas of the Mediterranean and around the south coast of Australia.
Althenia is a genus of aquatic plants of the family Potamogetonaceae. This has long been a group of two species in the Mediterranean Europe and South Africa, but in 2016 was revised to include an Australasian relative, Lepilaena.
Ruppia polycarpa is a submerged aquatic herb species in the genus Ruppia found in shallow brackish waters. It is a common submerged herb on Australasian coasts, including Australia and New Zealand.
Norio Tanaka is an aquatic botanist at Tsukuba Botanical Garden, National Science Museum, Tokyo, Japan.
Meiogyne cylindrocarpa, commonly known as fingersop or native apricot in Australia, is a small tree or shrub in the custard apple family Annonaceae. It is native to Borneo, Java, the Marianas, New Guinea, Northern Territory, Philippines, Queensland, Vanuatu, and Western Australia. In the Chamorro language it is known as "paipai".
Cylindrocarpa is a genus of plants in the Campanulaceae. There is only one known species, Cylindrocarpa sewerzowii, endemic to Kyrgyzstan. It has been found only in the Gory Naryntau mountain range, part of the Tien-Shan chain.
Althenia australis is a species of aquatic plant in the family Potamogetonaceae. It is found in fresh to brackish waters in Australia. This species has been transferred from Lepilaena.
Althenia preissii is a plant found in fresh to brackish waters in Australia. This species has been transferred from the genus Lepilaena.
Althenia marina is a plant found in brackish to marine waters in Australia. The species has been transferred from the genus Lepilaena.
Althenia bilocularis is a plant found in both Australia and New Zealand, in fresh to brackish waters. In Australia it is found in all mainland states with the exception of the Northern Territory. In New Zealand it is found on the North, South and Chatham Islands.
Eucalyptus cylindrocarpa, commonly known as the woodline mallee, is a species of mallee that is endemic to Western Australia. It has mostly smooth bark, sometimes with loose fibrous or flaky bark near the base of the trunk, linear to lance-shaped or curved adult leaves, flower buds in groups of seven, nine or eleven and cylindrical to barrel-shaped fruit.
Goodenia cylindrocarpa is a species of flowering plant in the family Goodeniaceae and is endemic to northern Australia. It is an erect annual, herb with spatula-shaped, or lance-shaped to egg-shaped leaves at the base of the plant, and panicles of small yellow flowers.
