Aponogeton undulatus

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Aponogeton undulatus
Aponogeton undulatus.jpg
Foliage
Scientific classification Red Pencil Icon.png
Kingdom: Plantae
Clade: Angiosperms
Clade: Monocots
Order: Alismatales
Family: Aponogetonaceae
Genus: Aponogeton
Species:A. undulatus
Binomial name
Aponogeton undulatus
Roxb.

Aponogeton undulatus is a species of aquatic plant, sometimes used in aquariums. Some taxonomists consider this should be under the name Aponogeton stachyosporus.

Aquarium 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". The aquarium principle was fully developed in 1850 by the chemist Robert Warington, who explained that plants added to water in a container would give off enough oxygen to support animals, so long as the numbers of animals did not grow too large. The aquarium craze was launched in early Victorian England by Gosse, who created and stocked the first public aquarium at the London Zoo in 1853, and published the first manual, The Aquarium: An Unveiling of the Wonders of the Deep Sea in 1854. An aquarium is a water-filled tank in which fish swim about. Small aquariums are kept in the home by hobbyists. There are larger public aquariums in many cities. This kind of aquarium is a building with fish and other aquatic animals in large tanks. A large aquarium may have otters, turtles, dolphins, and other sea animals. Most aquarium tanks also have plants.

Contents

Origin

It is originally from India, Bangladesh, Myanmar and Sri Lanka

Description

It is a submerged aquatic plant with an ovoid rhizome about 2 inches (5 cm) long by 1 inch (2.5 cm) broad. The leaves are a very pale green, 4 to 6 inches (10 to 15 cm) long with an undulating margin on petioles of 6 inches (15 cm) length. Floating leaves are not produced by the true species but some hybrids do produce them. The flowers are produced on a single erect stem with white flowers.

Aquatic plant plant that has adapted to living in an aquatic environment

Aquatic plants are plants that have adapted to living in aquatic environments. They are also referred to as hydrophytes or macrophytes. A macrophyte is an aquatic plant that grows in or near water and is either emergent, submergent, or floating, and includes helophytes. In lakes and rivers macrophytes provide cover for fish and substrate for aquatic invertebrates, produce oxygen, and act as food for some fish and wildlife.

Rhizome modified subterranean stem of a plant

In botany and dendrology, a rhizome is a modified subterranean plant stem that sends out roots and shoots from its nodes. Rhizomes are also called creeping rootstalks or just rootstalks. Rhizomes develop from axillary buds and grow horizontally. The rhizome also retains the ability to allow new shoots to grow upwards.

Leaf organ of a vascular plant, composing its foliage

A leaf carver is an organ of a vascular plant and is the principal lateral appendage of the stem. The leaves and stem together form the shoot. Leaves are collectively referred to as foliage, as in "autumn foliage".

Cultivation and uses

Many hybrids of this species are sold in the aquarium trade. It will tolerate most water conditions. It likes a bright position but will grow in partial shade. It is a popular specimen plant for aquariums. Some plants will go dormant in the winter and for several months can be kept at a lower temperature, others seem to keep growing.

Hybrid (biology) offspring of cross-species reproduction

In biology, a hybrid is the offspring resulting from combining the qualities of two organisms of different breeds, varieties, species or genera through sexual reproduction. Hybrids are not always intermediates between their parents, but can show hybrid vigour, sometimes growing larger or taller than either parent. The concept of a hybrid is interpreted differently in animal and plant breeding, where there is interest in the individual parentage. In genetics, attention is focused on the numbers of chromosomes. In taxonomy, a key question is how closely related the parent species are.

Dormancy state of minimized physical activity of an organism

Dormancy is a period in an organism's life cycle when growth, development, and physical activity are temporarily stopped. This minimizes metabolic activity and therefore helps an organism to conserve energy. Dormancy tends to be closely associated with environmental conditions. Organisms can synchronize entry to a dormant phase with their environment through predictive or consequential means. Predictive dormancy occurs when an organism enters a dormant phase before the onset of adverse conditions. For example, photoperiod and decreasing temperature are used by many plants to predict the onset of winter. Consequential dormancy occurs when organisms enter a dormant phase after adverse conditions have arisen. This is commonly found in areas with an unpredictable climate. While very sudden changes in conditions may lead to a high mortality rate among animals relying on consequential dormancy, its use can be advantageous, as organisms remain active longer and are therefore able to make greater use of available resources.

A fine brush can be used to pollinate the flowers. Seeds will germinate in a sand/very fine gravel compost covered by shallow water.

Compost organic matter that has been decomposed

Compost is organic matter that has been decomposed in a process called composting. This process recycles various organic materials otherwise regarded as waste products and produces a soil conditioner.

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