Chlorophytum comosum | |
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'Vittatum' cultivar | |
Scientific classification | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Angiosperms |
Clade: | Monocots |
Order: | Asparagales |
Family: | Asparagaceae |
Subfamily: | Agavoideae |
Genus: | Chlorophytum |
Species: | C. comosum |
Binomial name | |
Chlorophytum comosum | |
Synonyms | |
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Chlorophytum comosum, usually called spider plant or common spider plant due to its spider-like look, also known as spider ivy, airplane plant, [2] ribbon plant (a name it shares with Dracaena sanderiana ), [3] and hen and chickens, [4] is a species of evergreen perennial flowering plant of the family Asparagaceae. It is native to tropical and Southern Africa but has become naturalized in other parts of the world, including Western Australia and Bangladesh. [5] [6] Chlorophytum comosum is easy to grow as a houseplant because of its resilience, but it can be sensitive to the fluoride in tap water, which commonly gives it "burnt tips". Variegated forms are the most popular.
Chlorophytum comosum grows to about 60 cm (24 in) tall, although as a hanging plant it can descend many feet. It has fleshy, tuberous roots, each about 5–10 cm (2–4 in) long. The long narrow leaves reach a length of 20–45 cm (8–18 in) and are around 6–25 millimetres (0.2–1.0 in) wide. [7]
Flowers are produced in a long, branched inflorescence, which can reach a length of up to 75 cm (30 in) and eventually bends downward to meet the earth. Flowers initially occur in clusters of 1–6 at intervals along the stem (scape) of the inflorescence. Each cluster is at the base of a bract, which ranges from 2–8 cm (0.8–3.1 in) in length, becoming smaller toward the end of the inflorescence. Most of the flowers that are produced initially die off, so that relatively, the inflorescences are sparsely flowered. [7]
Individual flowers are greenish-white, borne on stalks (pedicels) some 4–8 mm (0.2–0.3 in) long. Each flower has six triply veined tepals that are 6–9 mm (0.2–0.4 in) long and slightly hooded or boat-shaped at their tips. The stamens consist of a pollen-producing anther about 3.5 mm (0.1 in) long with a filament of similar length or slightly longer. The central style is 3–8 mm (0.1–0.3 in) long. Seeds are produced in a capsule, 3–8 mm (0.1–0.3 in) long, on stalks (pedicels) that lengthen to up to 12 mm (0.5 in). [7]
The inflorescences carry not only flowers but also vegetative plantlets at the tips of their branches, which eventually droop and touch the soil, developing adventitious roots. The stems (scapes) of the inflorescence are called "stolons" in some sources, but this term is more correctly used for stems that do not bear flowers and have roots at the nodes. [8]
The first formal description of Chlorophytum comosum was by the Swedish naturalist Carl Peter Thunberg as Anthericum comosum in the 1794 volume of Prodromus Plantarum Capensium, Thunberg's work on the plants of South Africa. [9] [10] The species was subsequently moved to a number of different genera, including Phalangium, Caesia , HartwegiaNees, and Hollia, before receiving its current placement in Chlorophytum by Jacques in 1862. [5]
The species has been confused with Chlorophytum capense(L.) Voss by some authors, but this is a different species. [1]
There are three described varieties of the species: the autonym C. comosum var. comosum has strap-shaped narrow leaves and is found along forest margins; C. comosum var. bipindense has broader, petiolate leaves with stripes on the underside and the inflorescences are 2–3 times the length of the leaves; and C. comosum var. sparsiflorum also has broader leaves that narrow to the base, and usually lacks a petiole and the striping on the underside of the leaf and the inflorescences are up to two times the length of the leaves. The latter two are rainforest-dwelling taxa that had been described earlier as separate species, but botanists Axel Dalberg Poulsen and Inger Nordal reduced the taxa to varieties of C. comosum in 2005. [11]
Delimitation of species boundaries within the genus Chlorophytum is reported to be difficult, possibly because of several evolutionary radiations into forest environments that led to morphological aspects that are too similar to reliably distinguish separate species. The evidence given to support this is the widespread distribution of most taxa in the genus and poor seed dispersal, leading to the conclusion of deeper evolutionary divergence among the taxa.
The three described varieties in C. comosum could be an example of this convergent evolution of leaf shape among the forest-dwelling varieties from species of disparate origin, leading to the species C. comosum being polyphyletic, instead of the traditional view of morphological divergence among the varieties within the species with the assumption of a common origin (monophyly). The widespread C. comosum var. comosum has slender, near linear leaves that lack a petiole similar to plants found in cultivation and is only found growing at the margins of the rainforest. The two other varieties, C. comosum var. sparsiflorum and C. comosum var. bipindense, possess petioles and have broader leaves necessary for collecting more light in the shady Guineo-Congolean rainforest. A study published in 2005 used 16 morphological characters and was unable to delimit species boundaries among these three taxa, so they were relegated to varietal status. [11] A follow-up study published in 2008 provided preliminary evidence from phylogenetic analysis of plastid and nuclear DNA sequences that established samples from disparate collections sites identified as C. comosum were polyphyletic. [12]
Chlorophytum comosum has a widespread native distribution in Africa, being native to six of the ten World Geographical Scheme for Recording Plant Distributions regions of Africa (West Tropical Africa, West-Central Tropical Africa, Northeast Tropical Africa, East Tropical Africa, South Tropical Africa, and Southern Africa). [5]
Chlorophytum comosum is a popular houseplant. The species with all-green leaves forms only a small proportion of plants sold. More common are two variegated cultivars: [3]
Both cultivars have gained the Royal Horticultural Society's Award of Garden Merit [15] [16] (confirmed 2017). [17]
Propagating Chlorophytum comosum commonly occurs through potting the plantlets, informally referred to as 'spiderettes', [18] or 'pups', [19] directly into potting soil attached to the main plant or cutting the running stems and then potting them.
Spider plants are easy to grow, being able to thrive in a wide range of conditions. They will tolerate temperatures down to 2 °C (35 °F), but grow best at temperatures between 18 °C (65 °F) and 32 °C (90 °F). Plants can be damaged by high fluoride or boron levels. [3]
Spider plants are non-toxic to humans and pets, [20] and are considered edible. [13]
The NASA Clean Air Study suggested that air plants were effective at removing common household air toxins formaldehyde and xylene; however, these results are not applicable to typical buildings, where outdoor-to-indoor air exchange already removes volatile organic compounds (VOCs) at a rate that could only be matched by the placement of 10–1000 plants/m2 of a building's floor space. [21]
The results also failed to replicate in future studies, with a 2014 review stating that: [22]
While the plant's ability to take up VOCs is well documented in laboratory studies, the effect of plants on indoor air in complex environments like offices requires further investigations to clarify the full capacity of plants in real-life settings.
In the laboratory settings uses in the Clean Air Study, spider plants were shown to reduce formaldehyde pollution, and approximately 70 plants would neutralize the formaldehyde released by materials in a representative (c. 167 m2 [1,800 sq ft]) energy-efficient house, assuming each plant occupies a 3.8 L (0.84 imp gal; 1.0 US gal) pot. [23] [24]
The tuberous roots are reportedly edible (whether raw or cooked unstated) although mild laxative effects are claimed by the Nguni people of its native South Africa. [24]
Dracaena sanderiana is a species of flowering plant in the family Asparagaceae, native to Central Africa. It was named after the German–English gardener Henry Frederick Conrad Sander (1847–1920). The plant is commonly marketed as "lucky bamboo"; this term has become one of its common names.
Saxifraga flagellaris, the whiplash saxifrage or flagellate saxifrage, is a plant native all over the Eurasian Arctic Coast, Siberia, Far East, Caucasus and some areas of northern Rocky Mountains. It is not very common. It is also known as spider saxifrage or "spider plant", though the latter name more commonly refers to the unrelated Chlorophytum comosum (Agavaceae).
Chlorophytum (,), sometimes colloquially referred to as the spider plants, is a genus of almost 200 species of evergreen perennial flowering plants in the century plant subfamily within the asparagus family. The plants are native to the tropical and subtropical regions of Africa, Australia, and Asia.
Chamaerops is a genus of flowering plants in the family Arecaceae. It contains only one species, Chamaerops humilis, variously called European fan palm or the Mediterranean dwarf palm. It is one of the most cold-hardy palms and is used in landscaping in temperate climates.
Kalanchoe daigremontiana, formerly known as Bryophyllum daigremontianum and commonly called mother of thousands, alligator plant or Mexican hat plant, is a succulent plant native to Madagascar. Like other members of Bryophyllum, it can propagate vegetatively from plantlets that develop on its leaf margins, as well as through upshoots from lateral roots, and seeds. All parts of this species contain a very toxic steroid known as daigremontianin.
Kalanchoe pinnata, commonly known as cathedral bells, air plant, life plant, miracle leaf, Goethe plant, and love bush, is a succulent plant native to Madagascar. It is a popular houseplant and has become naturalized in tropical and subtropical areas. The species is distinctive for the profusion of miniature plantlets that form on the margins of its leaves, a trait it has in common with some other members of Bryophyllum.
Scadoxus is a genus of African and Arabian plants in the Amaryllis family, subfamily Amaryllidoideae. The English names blood lily or blood flower are used for some of the species. The genus has close affinities with Haemanthus. Species of Scadoxus are grown as ornamental plants for their brilliantly coloured flowers, either in containers or in the ground in frost-free climates. Although some species have been used in traditional medicine, they contain poisonous alkaloids.
Scadoxus cyrtanthiflorus is a herbaceous plant endemic to the Rwenzori Mountains of east tropical Africa. Unusually for the genus Scadoxus its tubular blooms are pendant. It is sometimes grown as an ornamental plant in heated greenhouses.
A stem is one of two main structural axes of a vascular plant, the other being the root. It supports leaves, flowers and fruits, transports water and dissolved substances between the roots and the shoots in the xylem and phloem, engages in photosynthesis, stores nutrients, and produces new living tissue. The stem can also be called the culm, halm, haulm, or thyrsus.
Dendrobium tetragonum, commonly known as the tree spider orchid, is a variable species of epiphytic or lithophytic orchid endemic to eastern Australia. Tree spider orchids are unusual in having pendulous pseudobulbs that are thin and wiry near the base then expand into a fleshy, four-sided upper section before tapering at the tip. There are only a few thin but leathery leaves at the end of the pseudobulbs and up to five flowers on relatively short flowering stems. To allow for the variations in the species there are five subspecies and a variety, some with a unique common name.
Epidendrum calanthum is a terrestrial reed-stemmed Epidendrum orchid from the montane Tropical rainforest of Bolivia, Colombia, Ecuador, Peru, Venezuela, and the West Indies.
Persicaria amphibia is a species of flowering plant in the knotweed family known by several common names, including longroot smartweed, water knotweed, water smartweed, and amphibious bistort. It is native to much of North America, Asia, Europe, and parts of Africa, and it grows elsewhere as an introduced species and sometimes a noxious weed.
Phaius tankervilleae, commonly known as the greater swamp-orchid, swamp lily, swamp orchid, nun's-hood orchid, nun's orchid, veiled orchid, Lady Tankerville's swamp orchid or 鹤顶兰 , is a species of orchid native to areas from Asia to islands in the Pacific Ocean. It has large, pleated leaves and tall flowering stems bearing up to twenty five white, brown, mauve and yellow flowers. It was named for Lady Tankerville who was the first person to make the orchid flower successfully in England. It was the first tropical orchid to flower in England.
Phaius tankervilleaevar.australis, also known as the common swamp orchid, southern swamp-orchid, swamp lily or island swamp-orchid, is a species of orchid endemic to eastern Australia. It is an evergreen, terrestrial herb with large, crowded pseudobulbs, large pleated leaves and flowers that are reddish brown on the inside and white outside.
Scadoxus multiflorus is a species of bulbous plant native to most of sub-Saharan Africa from Senegal to Somalia to South Africa. It is also native to Arabian Peninsula and to the Seychelles. It is naturalized in Mexico and in the Chagos Archipelago.It is also found in Indian peninsula. It is grown as an ornamental plant for its brilliantly coloured flowers, either in containers or in the ground in where the climate is suitable. There are three recognized subspecies. Strongly toxic like other Scadoxus species, it has been used as a component of arrow poisons and fishing poisons, as well as in traditional medicine. Common names, some of which are used for other species, include blood lily, ball lily, fireball lily, blood flower, Katherine-wheel, oxtongue lily, poison root and powderpuff lily.
Hypnodendron comosum, commonly known as palm moss or palm tree moss, is a ground moss which can be divided into two varieties: Hypnodendron comosum var. comosum and Hypnodendron comosum var. sieberi. Both Hypnodendron varieties most commonly grow in damp locations in the temperate and tropical rainforests of New South Wales, Victoria, and Tasmania in southern Australia and in New Zealand.
Scadoxus cinnabarinus is a herbaceous plant from tropical rainforest in Africa. It is native to Western and Central Africa from Sierra Leone in the far west to Angola in the south. It has been reported from Ghana, Côte d'Ivoire, Nigeria, Niger, Sierra Leone, Central African Republic, Cameroon, Congo, Equatorial Guinea, Gabon, São Tomé, Zaire, Uganda, and Angola.
Hypericum patulum, known as goldencup St. John's wort or yellow mosqueta, is a species of flowering plant in Hypericumsect. Ascyreia.
Myristica insipida, commonly known in Australia as Australian nutmeg, Queensland nutmeg or native nutmeg, is a small rainforest tree in the family Myristicaceae native to parts of Malesia, Papuasia and Australia. It is closely related to the commercially-important species of nutmeg, M. fragrans.
Babiana mucronata is a perennial plant species that grows to about 5–18 cm (2.0–7.1 in) high and annually forms leaves and flowers from an underground corm. It is assigned to the iris family. It has a simple or branched, more or less upright spike of 3-12 dark to pale violet-blue, mirror-symmetrical flowers. Each flower consists of a perianth that is merged below into a funnel-shaped tube of 10–25 mm (0.39–0.98 in) long but splits into six unequal tepals. Three stamens are curved, crowded near the upper lip, and carry pale violet anthers. Flowers may be found between late July and September.