''Dracaena trifasciata'' is a

species In biology, a species is the basic unit of Taxonomy (biology), classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of ...

flowering plant Flowering plants are plants that bear flowers and fruits, and form the clade Angiospermae (), commonly called angiosperms. The term "angiosperm" is derived from the Greek language, Greek words ('container, vessel') and ('seed'), and refers to ...

in the

family Family (from la, familia) is a group of people related either by consanguinity (by recognized birth) or affinity (by marriage or other relationship). The purpose of the family is to maintain the well-being of its members and of society. Ideal ...

Asparagaceae Asparagaceae, known as the asparagus family, is a family of flowering plants, placed in the order Asparagales of the monocots. The family name is based on the edible garden asparagus, '' Asparagus officinalis''. Those who live in the temperat ...

native Native may refer to: People * Jus soli, citizenship by right of birth * Indigenous peoples, peoples with a set of specific rights based on their historical ties to a particular territory ** Native Americans (disambiguation) In arts and entertai ...

tropical The tropics are the regions of Earth surrounding the Equator. They are defined in latitude by the Tropic of Cancer in the Northern Hemisphere at N and the Tropic of Capricorn in the Southern Hemisphere at S. The tropics are also referred to ...

West Africa from Nigeria east to the Congo. It is most commonly known as the snake plant, Saint George's sword, mother-in-law's tongue, and viper's bowstring hemp, among other names. Until 2017, it was known under the

synonym A synonym is a word, morpheme, or phrase that means exactly or nearly the same as another word, morpheme, or phrase in a given language. For example, in the English language, the words ''begin'', ''start'', ''commence'', and ''initiate'' are all ...

''Sansevieria trifasciata''.

Description

It is an

evergreen In botany, an evergreen is a plant which has foliage that remains green and functional through more than one growing season. This also pertains to plants that retain their foliage only in warm climates, and contrasts with deciduous plants, which ...

perennial plant A perennial plant or simply perennial is a plant that lives more than two years. The term ('' per-'' + '' -ennial'', "through the years") is often used to differentiate a plant from shorter-lived annuals and biennials. The term is also wide ...

forming dense stands, spreading by way of its creeping

rhizome 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 h ...

, which is sometimes above ground, sometimes underground. Its stiff leaves grow vertically from a basal rosette. Mature leaves are dark green with light gray-green cross-banding and usually range from long and wide, though it can reach heights above in optimal conditions. The

specific epithet In taxonomy, binomial nomenclature ("two-term naming system"), also called nomenclature ("two-name naming system") or binary nomenclature, is a formal system of naming species of living things by giving each a name composed of two parts, bo ...

''trifasciata'' means "three bundles". The plant exchanges

oxygen Oxygen is the chemical element with the symbol O and atomic number 8. It is a member of the chalcogen group in the periodic table, a highly reactive nonmetal, and an oxidizing agent that readily forms oxides with most elements as ...

and

carbon dioxide Carbon dioxide ( chemical formula ) is a chemical compound made up of molecules that each have one carbon atom covalently double bonded to two oxygen atoms. It is found in the gas state at room temperature. In the air, carbon dioxide is tr ...

using the

crassulacean acid metabolism Crassulacean acid metabolism, also known as CAM photosynthesis, is a carbon fixation pathway that evolved in some plants as an adaptation to arid conditions that allows a plant to photosynthesize during the day, but only exchange gases at night. I ...

process, which allows them to withstand

drought A drought is defined as drier than normal conditions.Douville, H., K. Raghavan, J. Renwick, R.P. Allan, P.A. Arias, M. Barlow, R. Cerezo-Mota, A. Cherchi, T.Y. Gan, J. Gergis, D. Jiang, A. Khan, W. Pokam Mba, D. Rosenfeld, J. Tierney, an ...

. The microscopic pores on the plant's leaves, called the stomata and used to exchange gases, are opened only at night to prevent water from escaping via

evaporation Evaporation is a type of vaporization that occurs on the surface of a liquid as it changes into the gas phase. High concentration of the evaporating substance in the surrounding gas significantly slows down evaporation, such as when h ...

in the hot sun. It is a weed in some parts of northern Australia. This plant is often kept as a houseplant due to its non-demanding maintenance. They require very little water and sun, making them perfect for dark rooms and apartments. To get this plant to go into bloom outside of its natural environment is difficult. Replicating its natural environment is possible. Its flowers vary from greenish white to cream-colored — some are fragrant at night, others not at all — and have a sticky texture.

Common names

''Dracaena trifasciata'' is commonly called " mother-in-law's tongue", "

Saint George Saint George ( Greek: Γεώργιος (Geórgios), Latin: Georgius, Arabic: القديس جرجس; died 23 April 303), also George of Lydda, was a Christian who is venerated as a saint in Christianity. According to tradition he was a soldier ...

's sword" or "snake plant", because of the shape and sharp margins of its

leaves A leaf ( : leaves) is any of the principal appendages of a vascular plant stem, usually borne laterally aboveground and specialized for photosynthesis. Leaves are collectively called foliage, as in "autumn foliage", while the leaves, ste ...

that resemble snakes. It is also known as the "viper's bowstring hemp", because it is one of the sources for plant fibers used to make

bowstring A bowstring joins the two ends of the bow stave and launches the arrow. Desirable properties include light weight, strength, resistance to abrasion, and resistance to water. Mass has most effect at the center of the string; of extra mass in th ...

Cultivation and uses

Like some other members of its genus, ''D. trifasciata'' yields bowstring hemp, a strong plant fiber once used to make

s. It is now used predominantly as an

ornamental plant Ornamental plants or garden plants are plants that are primarily grown for their beauty but also for qualities such as scent or how they shape physical space. Many flowering plants and garden varieties tend to be specially bred cultivars that ...

, outdoors in warmer climates, and indoors as a

houseplant A houseplant, sometimes known as a pot plant, potted plant, or an indoor plant, is an ornamental plant that is grown indoors. As such, they are found in places like residences and offices, mainly for decorative purposes. Common houseplants are us ...

in cooler climates. It is popular as a houseplant because it is tolerant of low light levels and irregular watering; during winter, it needs only one watering every couple of months. It will rot easily if overwatered. It is commonly recommended to beginners interested in cultivating houseplants for its easy care. The

NASA Clean Air Study __NOTOC__ The NASA Clean Air Study was a project led by the National Aeronautics and Space Administration ( NASA) in association with the Associated Landscape Contractors of America (ALCA) in 1989, to research ways to clean the air in sealed envi ...

found ''D. trifasciata'' has the potential to filter indoor air, removing 4 of the 5 main toxins involved in the effects of

sick building syndrome Sick building syndrome (SBS) is an unsubstantiated diagnosis where health problems are attributed to buildings. The cause of the health problems are unknown. Symptoms attributed to SBS may or may not be a direct result of inadequate cleaning or ...

. However, its rate of filtration is too slow for practical indoor use. It can be propagated by cuttings or by dividing the rhizome. The first method has the disadvantage that the

variegation Variegation is the appearance of differently coloured zones in the leaves and sometimes the stems and fruit of plants. Species with variegated individuals are sometimes found in the understory of tropical rainforests, and this habitat is the s ...

will be lost. ''D. trifasciata'' is considered by some authorities a potential weed in Australia, although widely used as an ornamental, in the tropics outdoors in pots and garden beds and in temperate areas as an indoor plant. The plant contains

saponin Saponins (Latin "sapon", soap + "-in", one of), also selectively referred to as triterpene glycosides, are bitter-tasting usually toxic plant-derived organic chemicals that have a foamy quality when agitated in water. They are widely distributed ...

s which are mildly

toxic Toxicity is the degree to which a chemical substance or a particular mixture of substances can damage an organism. Toxicity can refer to the effect on a whole organism, such as an animal, bacterium, or plant, as well as the effect on a subs ...

to dogs and cats and can lead to gastrointestinal upset if consumed. In South Africa, it is also used to treat ear infections.

Varieties and cultivars

Numerous

cultivar A cultivar is a type of cultivated plant that people have selected for desired traits and when propagated retain those traits. Methods used to propagate cultivars include: division, root and stem cuttings, offsets, grafting, tissue culture, ...

s have been selected, many of them for

variegated Variegation is the appearance of differently coloured zones in the leaves and sometimes the stems and fruit of plants. Species with variegated individuals are sometimes found in the understory of tropical rainforests, and this habitat is the s ...

foliage with yellow or silvery-white stripes on the leaf margins. Popular cultivars include 'Compacta', 'Goldiana', 'Hahnii', 'Laurentii', 'Silbersee', and 'Silver Hahnii'. 'Hahnii' was discovered in 1939 by William W. Smith, Jr. in the Crescent Nursery Company,

New Orleans, Louisiana New Orleans ( , ,New Orleans

. The 1941 patent was assigned to Sylvan Frank Hahn, Pittsburgh, Pennsylvania. The variety ''D. trifasciata'' var. ''laurentii'', together with the

s 'Bantel's Sensation' and 'Golden Hahni' have gained the

Royal Horticultural Society The Royal Horticultural Society (RHS), founded in 1804 as the Horticultural Society of London, is the UK's leading gardening charity. The RHS promotes horticulture through its five gardens at Wisley (Surrey), Hyde Hall (Essex), Harlow Carr ( ...

Award of Garden Merit The Award of Garden Merit (AGM) is a long-established annual award for plants by the British Royal Horticultural Society (RHS). It is based on assessment of the plants' performance under UK growing conditions. History The Award of Garden Merit ...

Cultural significance

In its native range in Africa, a yellow-tipped cultivar is associated with Oya, the female

Orisha Orishas (singular: orisha) are spirits that play a key role in the Yoruba religion of West Africa and several religions of the African diaspora that derive from it, such as Cuban, Dominican and Puerto Rican Santería and Brazilian Candomblé. T ...

of storms. In Nigeria it is commonly linked with

Ogun Ogun or Ogoun ( Yoruba: Ògún, Portuguese: Ogum, Gu; also spelled Oggun or Ogou; known as Ogún or Ogum in Latin America) is a spirit that appears in several African religions. He attempted to seize the throne after the demise of Obatala, who ...

, the Orisha of war, and is used in rituals to remove the evil eye. In Brazil its common name ''Espada de São Jorge'' links it to

, who by

syncretism Syncretism () is the practice of combining different beliefs and various schools of thought. Syncretism involves the merging or assimilation of several originally discrete traditions, especially in the theology and mythology of religion, thu ...

is also associated with Orisha

. This plant is visible on the porch in

Grant Wood Grant DeVolson Wood (February 13, 1891 February 12, 1942) was an American painter and representative of Regionalism, best known for his paintings depicting the rural American Midwest. He is particularly well known for ''American Gothic'' (193 ...

's 1930 painting, ''

American Gothic ''American Gothic'' is a 1930 painting by Grant Wood in the collection of the Art Institute of Chicago. Wood was inspired to paint what is now known as the ''American Gothic'' House in Eldon, Iowa, along with "the kind of people efancied shoul ...

''.

Gallery

Image:Bird's Nest Sansevieria2013.JPG, ''Dracaena trifasciata'' 'Hahnii', a dwarfed cultivar File:Sansevieria trifasciata 1.jpg, In cultivation File:Georgeflowr1.jpg, Flowering File:Fully opened flower cluster.jpg, Fully developed and blooming inflorescence.

References

External links

* *https://plantingarden.com/10-types-of-snake-plants/ {{Taxonbar, from1=Q65936984, from2=Q5859273 trifasciata Flora of West Tropical Africa Garden plants of Africa House plants Low light plants