Crinum thaianum

Last updated

Crinum thaianum
Crinum thaianum in Thailand.jpg
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Monocots
Order: Asparagales
Family: Amaryllidaceae
Subfamily: Amaryllidoideae
Genus: Crinum
Species:
C. thaianum
Binomial name
Crinum thaianum
Thailand in the world (W3).svg
Crinum thaianum is endemic to Thailand [3]

Crinum thaianum, also called the Thai onion plant or water onion, is an emergent plant species, endemic to the coastal plain of Ranong and Phang Nga Provinces, Thailand. [2] Its natural habitat is to grow along the banks of flowing, medium- to fast-running streams, where its roots and bulb are submerged in the sediment, while its leaves grow long in the current and can access fresh air at the surface. When in bloom, the flower is an umbel of large, showy blossoms above the waterline. These growth habits make it a wonderful addition for tropical aquaria, and it is sold in many regions to be used specifically for growth within displays of tropical fish. It also serves the added benefit of oxygenating the water and absorbing ammonia, which is toxic to most aquatic animals. [4] [5] [6] In nature, however, the species is threatened with extinction, and diminishing rapidly, due to habitat destruction. [1]

Contents

Description

Long, up to 60 inches (150 cm) (or longer), tough, ribbon-like bright green leaves grow from a bulb that looks much like an onion. White lily-like flowers may form on a long stalk emerging above the water's surface. [2]

Etymology

The specific epithet thaianum refers to Thailand, this species’ country of origin.

Cultivation

Crinum thaianum is cultivated as an aquatic ornamental to decorate aquaria. It requires water temperatures of 72–86 degrees F (22–30 degrees C) and is popular in home aquaria because it is easy to keep, tolerant of temperature swings and lighting variations, and because its leaves are tough enough to withstand the attention of herbivorous fish. Propagation is from daughter bulbs. It likes a rich substrate and additional CO2 encourages growth with space to spread and grow. It does well in a warm outside pond. [7] [8]

Status and threats

Crinum thaianum is not under protection by any legislation in Thailand and also not protected by CITES. The habitats of this species are also not under protection.[ citation needed ]

This species has remaining only 1% and found population very high fragmented and rapidly decreasing. In some habitats, it is already extinct due to collecting the bulb for commercial purposes, dredging under flooding control schemes, and land use changes. Currently, Crinum thaianum has been listed as Endangered under IUCN Redlist and Thailand Data Redlist. It is really urgent required for special management and conservation plan to reduce decrease and extinction.[ citation needed ]

Related Research Articles

<span class="mw-page-title-main">Bulb</span> Short plant stem with fleshy leaves or leaf bases for food storage and water

In botany, a bulb is structurally a short stem with fleshy leaves or leaf bases that function as food storage organs during dormancy.

<span class="mw-page-title-main">Vivarium</span> Area for keeping and raising animals or plants

A vivarium is an area, usually enclosed, for keeping and raising animals or plants for observation or research. Water-based vivaria may have open tops providing they are not connected to other water bodies. An animal enclosure is considered a vivarium only if it provides quality of life through naturalistic components such as ample living space and natural decor that allow and encourage natural behaviours. Often, a portion of the ecosystem for a particular species is simulated on a smaller scale, with controls for environmental conditions such as temperature, humidity and light.

<i>Crinum</i> Genus of flowering plants in the family Amaryllidaceae

Crinum is a genus of about 180 species of perennial plants that have large showy flowers on leafless stems, and develop from bulbs. They are found in seasonally moist areas, including marshes, swamps, depressions and along the sides of streams and lakes in tropical and subtropical areas worldwide.

<i>Vallisneria</i> Genus of aquatic plants

Vallisneria is a genus of freshwater aquatic plant, commonly called eelgrass, tape grass or vallis. The genus is widely distributed in tropical and subtropical regions of Asia, Africa, Europe, and North America.

<i>Aponogeton madagascariensis</i> Species of aquatic plant

Aponogeton madagascariensis is commonly known as Madagascar laceleaf, lattice leaf or lace plant. It is an aquatic plant native to Madagascar, popularly sold for use in aquariums.

<i>Anubias</i> Genus of flowering plants

Anubias is a genus of aquatic and semi-aquatic flowering plants in the family Araceae, native to tropical central and western Africa. They primarily grow in rivers and streams, but can also be found in marshes. They are characterized by broad, thick, dark leaves that come in many different forms. The genus was revised in 1979 and since then its nomenclature has been stable. Species can be determined by using mostly characteristics of the inflorescence. Because of the often shady places where the plants grow, the genus was named after the Egyptian god Anubis, the god of the afterlife. The genus was first described in 1857 by Heinrich Wilhelm Schott, with A. afzelii as its type species.

<span class="mw-page-title-main">Aquascaping</span> Craft of designing and planting aquariums

Aquascaping is the craft of arranging aquatic plants, as well as rocks, stones, cavework, or driftwood, in an aesthetically pleasing manner within an aquarium—in effect, gardening under water. Aquascape designs include a number of distinct styles, including the garden-like Dutch style and the Japanese-inspired nature style. Typically, an aquascape houses fish as well as plants, although it is possible to create an aquascape with plants only, or with rockwork or other hardscape and no plants.

<span class="mw-page-title-main">Fishkeeping</span> Practice of containing fish

Fishkeeping is a popular hobby, practiced by aquarists, concerned with keeping fish in a home aquarium or garden pond. There is also a piscicultural fishkeeping industry, serving as a branch of agriculture.

<i>Echinodorus cordifolius</i> Species of aquatic plant

Echinodorus cordifolius, the spade-leaf sword or creeping burhead, is a species of aquatic plants in the Alismatales. It is native to Mexico, the West Indies, Central America, South America and the southeastern United States.

<span class="mw-page-title-main">Croaking gourami</span> Species of fish

The croaking gourami is a species of small freshwater labyrinth fish of the gourami family. They are native to still waters in Southeast Asia and are distributed worldwide via the aquarium trade. Croaking gouramis are capable of producing a "croaking" noise using their pectoral fins.

<span class="mw-page-title-main">Substrate (aquarium)</span>

The substrate of an aquarium refers to the material used on the tank bottom. It can affect water chemistry, filtration, and the well-being of the aquarium's inhabitants, and is also an important part of the aquarium's aesthetic appeal. The appropriate substrate depends on the type of aquarium; the most important parameter is whether the aquarium contains fresh water or saltwater.

<span class="mw-page-title-main">Clown featherback</span> Species of ray-finned fish

The clown featherback, also known as the clown knifefish and spotted knifefish, is a nocturnal species of tropical fish with a long, knife-like body. This knifefish is native to freshwater habitats in Cambodia, Laos, Thailand, and Vietnam, but it has also been introduced to regions outside its native range. It is one of the world's most invasive species.

<i>Ceratophyllum demersum</i> Species of plant

Ceratophyllum demersum, commonly known as hornwort, rigid hornwort, coontail, or coon's tail, is a species of Ceratophyllum. It is a submerged, free-floating aquatic plant, with a cosmopolitan distribution, native to all continents except Antarctica. It is a harmful weed introduced in New Zealand. It is also a popular aquarium plant.

<i>Bolbitis heudelotii</i> Species of aquatic plant

Bolbitis heudelotii, also known as the African water fern, creeping fern, and Congo fern, is native to subtropical and tropical Africa, from Ethiopia west to Senegal; and down to northern South Africa.

<i>Aponogeton ulvaceus</i> Species of aquatic plant

Aponogeton ulvaceus is a submerged aquatic plant in the Aponogetonaceae family. It has a small cone shaped, slightly hairy rhizome about 30 mm in diameter. The leaf blades have a base that tapers gradually, pale green in colour, over 50 cm (20 in) long and 8 cm (3 in) broad, with a wavy margin on petioles of an equal length, and in appearance slightly translucent. A single bulb may produce up to forty leaves in good conditions. No floating leaves are formed. The yellow flowers are produced on one or two, and sometimes more, erect spikes.

<span class="mw-page-title-main">Aquarium</span> Transparent tank of water for fish and water-dwelling species

An aquarium is a vivarium of any size having at least one transparent side in which aquatic plants or animals are kept and displayed. Fishkeepers use aquaria to keep fish, invertebrates, amphibians, aquatic reptiles, such as turtles, and aquatic plants. The term aquarium, coined by English naturalist Philip Henry Gosse, combines the Latin root aqua, meaning 'water', with the suffix -arium, meaning 'a place for relating to'.

<i>Thalassia testudinum</i> Species of aquatic plant

Thalassia testudinum, commonly known as turtlegrass, is a species of marine seagrass. It forms meadows in shallow sandy or muddy locations in the Caribbean Sea and the Gulf of Mexico. Turtle grass and other seagrasses form meadows which are important habitats and feeding grounds. The grass is eaten by turtles and herbivorous fish, supports many epiphytes, and provides habitat for juvenile fish and many invertebrate taxa.

<i>Allium bisceptrum</i> Species of flowering plant

Allium bisceptrum, also known as the twincrest onion or aspen onion, is a high elevation plant native to western United States. It is a perennial that thrives under damp and shady conditions or open meadows in California, Arizona, New Mexico, Nevada, Oregon, Washington, Idaho, and Utah.

<i>Ornithoglossum undulatum</i> Species of flowering plant in the family Colchicaceae

Ornithoglossum undulatum, also known as the Karoo Slangkop, is a species of flowering plant in the family Colchicaceae. It is found in Southern Namibia and South Africa. In South Africa its range extends as far east as Somerset East in Eastern Cape Province. O. undulatum is a poisonous plant, and consumption of the leaves can kill livestock.

<i>Crinum calamistratum</i> Species of flowering plants in the family Amaryllidaceae

Crinum calamistratum is an aquatic angiosperm native to Cameroon. It is known by the common names of narrow crinum or African onion plant.

References

  1. 1 2 Soonthornnawaphat, S.; Bambaradeniya, C.; Sukpong, P. (2011). "Crinum thaianum". IUCN Red List of Threatened Species . 2011: e.T201627A9154955. doi: 10.2305/IUCN.UK.2011-2.RLTS.T201627A9154955.en . Retrieved 11 November 2021.
  2. 1 2 3 Joachim Schulze. 1971. Plant Life 27: 127, Crinum thaianum
  3. "Crinum thaianum J.Schulze". Plants of the World Online . Royal Botanic Gardens, Kew . Retrieved 23 July 2023.
  4. Tropica Aquarium Plants, plant details, Crinum thaianum
  5. Onion Plant
  6. Aqquarienpflanzenshop, Thailand-Wasserlilile, Crinum thaianum Zwiebel [ permanent dead link ]
  7. Hiscock, Peter (2003). Encyclopedia of Aquarium Plants. United States and Canada: Interpret Publishing. ISBN   0-7641-5521-0.
  8. "Success with Onion Plants". Archived from the original on 2007-10-11. Retrieved 2007-10-15.