Cinnamomum

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Cinnamomum
Cinnamomum verum 10zz.jpg
Cinnamomum verum
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Magnoliids
Order: Laurales
Family: Lauraceae
Genus: Cinnamomum
Schaeff.
Species

See text

Synonyms
Cinnamomum malabatrum, young leaves, Kerala, India Cinnamomum malabatrum at Kadavoor.jpg
Cinnamomum malabatrum , young leaves, Kerala, India

Cinnamomum is a genus of evergreen aromatic trees and shrubs belonging to the laurel family, Lauraceae. The species of Cinnamomum have aromatic oils in their leaves and bark. The genus contains approximately 250 species, distributed in tropical and subtropical regions of South Asia, Southeast Asia, East Asia and Oceania/Australasia. The genus includes a great number of economically important trees used to produce the spice of cinnamon.

Contents

Habitat

This genus is present in the Himalayas and other mountain areas and is present in tropical and subtropical montane rainforests, in the weed-tree forests, in valleys, and mixed forests of coniferous and deciduous broad-leaved trees, from southern China, India, and Southeast Asia. Some species, such as Cinnamomum camphora , tolerate drought.

Characteristics

All species tested so far are diploid, with the total number of chromosomes being 24. [1] This Lauraceae genus comprises approximately 250 trees and shrubs and most are aromatic. Some trees produce sprouts. The thick, leathery leaves are dark green, lauroid type. Laurophyll or lauroid leaves are characterized by a generous layer of wax, making them glossy in appearance, and narrow, pointed oval in shape with an 'apical mucro', or 'drip tip', which permits the leaves to shed water despite the humidity, allowing respiration from plant.

Mostly, the plants present a distinct odor. Their alternate leaves are ovate-elliptic, with margins entire or occasionally repand, with acute apices and broadly cuneate to subrounded bases. Upper leaf surfaces are shiny green to yellowish-green, while the undersides are opaque and lighter in color. Mature leaves are dark green. Young leaves are reddish brown to yellowish-red. The leaves are glabrous on both surfaces or sparsely puberulent beneath only when young; the leaves are mostly triplinerved or sometimes inconspicuously five-nerved, with conspicuous midrib on both surfaces. The axils of lateral nerves and veins are conspicuously bullate above and dome-shaped. Terminal buds are perulate.

The axillary panicle is 3.5–7 cm long. It is a genus of monoecious species, with hermaphrodite flowers, greenish white, white to yellow are glabrous or downy and pale to yellowish brown. Mostly the flowers are small. The perianth is glabrous or puberulent outside and densely pubescent inside. The purplish-black fruit is an ovate, ellipsoidal or subglobose drupe. The perianth-cup in fruit is cupuliform.

Cinnamomum parthenoxylon and Cinnamomum camphora are large evergreen trees that can grow to 30 m in height with trunks 3 m in diameter, with broadly ovate crowns. Terminal buds are broadly ovoid or globular, and covered with sericeous scales. Bark is yellowish-brown with irregular vertical splits. Branches are light brown, cylindrical, and glabrous.

Cinnamomum tree in a 10th-century Arabic manuscript Cinnamomum tree in a 10th century Arabic manuscript.jpg
Cinnamomum tree in a 10th-century Arabic manuscript
Bark of Cinnamomum camphora Cinnamomum camphora.jpg
Bark of Cinnamomum camphora
Drawing of Cinnamomum iners Reinwardt. ex Blume by J.C.P. Arckenhausen, ~1835 Naturalis Biodiversity Center - L.0939708 - Arckenhausen, J.C.P. - Cinnamomum iners Reinwardt. ex Blume, C.Linnaeus - Artwork.jpg
Drawing of Cinnamomum iners Reinwardt. ex Blume by J.C.P. Arckenhausen, ~1835
Cinnamomum kotoense inflorescence Lan Yu Rou Gui Cinnamomum kotoense 20210205100207 03.jpg
Cinnamomum kotoense inflorescence

The inner bark of several species is used to make the spice cinnamon. Other notable species are C. tamala , used as the herb malabathrum (also called tejpat and Indian bay leaf), and C. camphora , from which camphor is produced.

Accepted species

About 250 species are accepted, [2] including several commercially important ones.

A molecular study found that species from the tropical Americas classed in Cinnamomum were not closely related to the Paleotropical species, and have been reclassified with related species in genus Aiouea . [3]

Species transferred to Camphora: [4]

Related Research Articles

<span class="mw-page-title-main">Cinnamon</span> Spice from the inner tree bark of several members of genus Cinnamomum

Cinnamon is a spice obtained from the inner bark of several tree species from the genus Cinnamomum. Cinnamon is used mainly as an aromatic condiment and flavouring additive in a wide variety of cuisines, sweet and savoury dishes, breakfast cereals, snack foods, bagels, teas, hot chocolate and traditional foods. The aroma and flavour of cinnamon derive from its essential oil and principal component, cinnamaldehyde, as well as numerous other constituents including eugenol.

<span class="mw-page-title-main">Lauraceae</span> Family of flowering plants

Lauraceae, or the laurels, is a plant family that includes the true laurel and its closest relatives. This family comprises about 2850 known species in about 45 genera worldwide. They are dicotyledons, and occur mainly in warm temperate and tropical regions, especially Southeast Asia and South America. Many are aromatic evergreen trees or shrubs, but some, such as Sassafras, are deciduous, or include both deciduous and evergreen trees and shrubs, especially in tropical and temperate climates. The genus Cassytha is unique in the Lauraceae in that its members are parasitic vines. Most laurels are highly poisonous.

<span class="mw-page-title-main">Malabathrum</span> A spice plant native to India

Malabathrum, malabathron, or malobathrum is the name used in classical and medieval texts for certain cinnamon-like aromatic plant leaves and an ointment prepared from those leaves. Cinnamomum tamala, grown most commonly in the eastern Himalayas, but also in the Western Ghats, is thought to be a notable source of these leaves, although other species of Cinnamomum and even plants in other genera may have been used. In ancient Greece and Rome, the leaves were used to prepare a fragrant oil, called oleum malabathri, and were therefore valuable.

<i>Camphora officinarum</i> Species of tree

Camphora officinarum is a species of evergreen tree that is commonly known under the names camphor tree, camphorwood or camphor laurel.

<i>Cinnamomum tamala</i> Species of tree

Cinnamomum tamala, Indian bay leaf, also known as tejpat, tejapatta,Malabar leaf, Indian bark, Indian cassia, or malabathrum, is a tree in the family Lauraceae that is native to India, Bangladesh, Nepal, Bhutan, and China. It can grow up to 20 m (66 ft) tall. Its leaves have a clove-like aroma with a hint of peppery taste; they are used for culinary and medicinal purposes. It is thought to have been one of the major sources of the medicinal plant leaves known in classic and medieval times as malabathrum.

<span class="mw-page-title-main">Saigon cinnamon</span> Species of flowering plant

Saigon cinnamon is an evergreen tree indigenous to mainland Southeast Asia. Saigon cinnamon is more closely related to cassia than to Ceylon cinnamon, though in the same genus as both. Saigon cinnamon has 1-5% essential oil content and 25% cinnamaldehyde in essential oil. Consequently, among the species, Saigon cinnamon commands a relatively high price.

<i>Graphium sarpedon</i> Species of butterfly

Graphium sarpedon, the common bluebottle or blue triangle in Australia, is a species of swallowtail butterfly that is found in South and Southeast Asia, as well as eastern Australia. There are approximately sixteen subspecies with differing geographical distributions.

<i>Cinnamomum burmanni</i> Species of flowering plant

Cinnamomum burmanni, also known as Indonesian cinnamon, Padang cassia, Batavia cassia, or korintje, is one of several plants in the genus Cinnamomum whose bark is sold as the spice cinnamon. It is an evergreen tree native to southeast Asia.

<i>Cinnamomum osmophloeum</i> Species of tree

Cinnamomum osmophloeum, commonly known as pseudocinnamomum or indigenous cinnamon, is a medium-sized evergreen tree in the genus Cinnamomum. It is native to broad-leaved forests of central and northern Taiwan.

<i>Canella</i> Genus of trees

Canella is a monospecific genus containing the species Canella winterana, a tree native to the Caribbean from the Florida Keys to Barbados. Its bark is used as a spice similar to cinnamon, giving rise to the common names cinnamon bark, wild cinnamon, and white cinnamon.

<i>Cinnamomum verum</i> Species of tree

Cinnamomum verum is a small evergreen tree belonging to the family Lauraceae, native to Sri Lanka. The inner bark of the tree is historically regarded as the 'spice' cinnamon, though this term was later generalized for both C. cassia and C. zeylanicum as well.

Dodecadenia is a botanical genus of flowering plants in the family Lauraceae. It contains a single species, Dodecadenia grandiflora. It is present from central Asia, to Himalayas and India. It is present in tropical and subtropical montane rainforest, laurel forest, in the weed-tree forests in valleys, mixed forests of coniferous and deciduous broad-leaved trees, Tsuga forests; 2,000–2,600 metres (6,600–8,500 ft) in China in provinces of Sichuan, Xizang, Yunnan, and countries of Bhutan, India, Myanmar, and Nepal.

<i>Camphora glandulifera</i> Species of tree

Camphora glandulifera, common name false camphor tree or Nepal camphor tree, is a tree in the genus Cinnamomum of the family Lauraceae.

Syndiclis is a genus of flowering plants in the family Lauraceae. It contains ten species, which are native to China, Vietnam and Hainan, and Bhutan.

<i>Cinnamomum mercadoi</i> Species of tree

Cinnamomum mercadoi (kalingag) is a small tree, about 6 to 10 metres high, with a thick, aromatic bark. The plant part of the family Lauraceae, which contains about 45 genera and 2000-2500 species, and is related to the culinary cinnamon, sassafras, and bay tree. The plant is indigenous to the Philippines, where it grows best in forests at low and medium altitudes that sometimes ascend to 2,000 metres (6,600 ft). C. mercadoi is unusual in the cinnamon family in that its essential oil consists large amounts of safrol, whereas other oils of cinnamon contain cinnamaldehyde. It is currently listed in the International Union for Conservation of Nature (IUCN) Red List as "vulnerable" due to the overharvesting and the continuous loss of the Philippine forests.

<i>Cinnamomum kanehirae</i> Species of flowering plant

Cinnamomum kanehirae, also known as small-flowered camphor tree, or stout camphor tree, is a tree within the genus Cinnamomum of the family Lauraceae endemic to Taiwan.

<i>Cinnamomum malabatrum</i> Species of flowering plant

Cinnamomum malabatrum, wild cinnamon, country cinnamon also known as malabathrum, is a tree in the family Lauraceae that is endemic to Western Ghats of India. It can grow up to 15 m (49 ft) tall. It has aromatic leaves that are used for culinary and medicinal purposes. It is thought to have been one of the major sources of the medicinal plant leaves known in classic and medieval times as malabathrum. It is locally known as Edana, Therali or Vazhana in Kerala.

<i>Camphora</i> (plant) Genus of flowering plants

Camphora is a genus of evergreen plants belonging to the laurel family, Lauraceae. The genus contains approximately 20 species, distributed in tropical and subtropical regions of Asia. This genus was previously considered a synonym of Cinnamomum.

Cinnamomum bodinieri is a species of flowering plant in the family Lauraceae, native to southern China. A tree reaching 16 m (52 ft), it is typically found in situations with more light, such as alongside roads and streams or in open forests and thickets. Its essential oil is high in citral. It is used as a street tree in a number of southern Chinese cities.

References

  1. Ravindran, P. N.; K. Nirmal Babu; M. Shylaja (2003). Cinnamon and Cassia: The genus Cinnamomum. CRC Press. p. 59. ISBN   978-0-415-31755-9.
  2. Cinnamomum Schaeff. Plants of the World Online, Kew Science. Accessed 23 August 2022.
  3. Rohde, Randi, et al. “Neither Phoebe nor Cinnamomum – the Tetrasporangiate Species of Aiouea (Lauraceae).” Taxon, vol. 66, no. 5, 2017, pp. 1085–111. JSTOR, https://www.jstor.org/stable/26824604. Accessed 23 Aug. 2022.
  4. Yang, Zhi; Liu, Bing; Yang, Yong; Ferguson, David K. (2022). "Phylogeny and taxonomy of Cinnamomum (Lauraceae)". Ecology and Evolution. 12 (10). Bibcode:2022EcoEv..12E9378Y. doi:10.1002/ece3.9378. ISSN   2045-7758. PMC   9526118 . PMID   36203627. CC-BY icon.svg Text was copied from this source, which is available under a Creative Commons Attribution 4.0 International License.