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Cinnamomum camphora

(Camphor Laurel)

Overview

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Tree . Cinnamomum camphora is native to Japan, China, Taiwan and northern Vietnam. C. camphora has become widely naturalized in Australia. In the United States, it grows along the Gulf Coast and in California. C. camphora seeds are easily spread by birds from cultivated yards to open forests , and it is also spread to new locations through plant nursery sales. C. camphora fruits, leaves, and roots are toxic to humans in large doses . The trees have been associated with sterility in birds, fish kills , and the absence of frogs in nearby wetlands. According to LCD (2000), C. camphora is widely planted as a shade tree, screen , or windbreak. In China and Japan, it is grown commercially for its medicinal oil .

Interesting Facts

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Common Names

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Click on the language to view common names.

Common Names in Afrikaans:

Kanferboom

Common Names in Burmese:

Payok, Payuk

Common Names in Chinese:

Xiang Zhang Shu, Zhang, Zhang Shu

Common Names in English:

Camphor Laurel, Camphor, Camphor Tree, Camphortree, Japanese Camphor

Common Names in French:

Camphre, Camphrier

Common Names in German:

Campher, Kampferbaum

Common Names in Hindi:

Kapoor, Kapur, Karpoora, Karpur, Karpuram, Mushkapur, Pacchakarpuram

Common Names in Italian:

Albero Della Canfora, Canfora, Canforo, Lauro Canforo

Common Names in Japanese:

Kuso-No-Ki, Kusu, Kusuno-Ki, Kusunoki

Common Names in Kannada:

Karpura

Common Names in Korean:

Nok Na Mu

Common Names in Malayalam:

Cutakkarpuram, Karpuram, Subhramsu

Common Names in Nepalese:

Kapuur

Common Names in Portuguese:

árvore-Da-Camphora, Arvore Da Camphora, Arvore Da Camphora (árvore-Da-Camphora)

Common Names in Russian:

Kamfornii Lavr, Kamfornoe Derevo, Korichnik Kamfornii

Common Names in Sanskrit:

Candra, Karpura, Karpurah

Common Names in Spanish:

Alcanfor, Alcanforero, Arbol Del Alcanfor

Common Names in Tamil:

Karpuram

Common Names in Telugu:

Karpuramu, Pacca Karpuram

Common Names in Thai:

Karabun, Op Choei Yuan (Central Thailand), Phrom Seng (Shan - Northern Thailand)

Common Names in unspecified:

Camphor Laurel, Camphor Tree, Camphortree

Common Names in Urdu:

Kafur, Patckafur

Description

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Family Lauraceae

Shrubs to tall trees , evergreen or rarely deciduous ( Cassytha a parasitic vine with leaves reduced to scales ), usually aromatic . Leaves alternate, rarely whorled or opposite, simple , without stipules, petiolate . Leaf blade : unlobed (unlobed or lobed in Sassafras ), margins entire, occasionally with domatia (crevices or hollows serving as lodging for mites ) in axils of main lateral veins (in Cinnamomum ) . Inflorescences in axils of leaves or deciduous bracts, panicles (rarely heads ), racemes , compound cymes, or pseudoumbels (spikes in Cassytha ), sometimes enclosed by decussate bracts. Flowers bisexual or unisexual , bisexual only, or staminate and pistillate on different plants , or staminate and bisexual on some plants, pistillate and bisexual on others; flowers usually yellow to greenish or white, rarely reddish; hypanthium well developed, resembling calyx tube , tepals and stamens perigynous; tepals 6(-9), in 2(-3) whorls of 3, sepaloid , equal or rarely unequal, if unequal then usually outer 3 smaller than inner 3 (occasionally absent in Litsea ) ; stamens (3-) 9(-12), in whorls of 3, but 1 or more whorls frequently staminodial or absent; stamens of 3d whorl with 2 glands near base ; anthers 2- or 4-locular, locules opening by valves ; pistil 1, 1-carpellate; ovary 1-locular; placentation basal; ovule 1; stigma subsessile , discoid or capitate. Fruits drupes, drupe borne on pedicel with or without persistent tepals at base, or seated in ± deeply cup-shaped receptacle (cupule), or enclosed in accrescent floral tube . Seed 1; endosperm absent.

Genera ca. 50, species 2000-3000 (9 genera, 13 species in the flora ) : pantropical , a few species also in subtropical and temperate regions

Cassytha is sometimes placed in its own family , Cassythaceae; it is here retained in Lauraceae.[1]

Genus Cinnamomum

Trees or shrubs , evergreen . Bark gray [or brown], furrowed [or smooth ]; bark and leaves often aromatic . Leaves alternate, infrequently opposite. Leaf blade with (1-) 3 primary veins [or infrequently pinnately veined], papery to leathery; surfaces glabrous or variously pubescent ; domatia frequently present. Inflorescences appearing when mature leaves are present, axillary , panicles. Flowers bisexual ; tepals deciduous or persistent , white, green, or yellow, equal; stamens 9, anthers 4-locular, 4-valved (rarely with anthers of inner 3 stamens 2-locular), extrorse ; staminodes 3, apex sagittate or cordate; ovary ovoid-ellipsoid. Drupe bluish black, nearly globose , seated in small cupule with entire single rim or tepals persistent.

Species 300 or more: tropical and subtropical regions, North America, Central America, South America, Asia, Pacific Islands, Australia.

The neotropical species were formerly included in Phoebe, but they are better placed in Cinnamomum.[2]

Physical Description

Species Cinnamomum camphora

Trees , to 15 m. Branches terete , glabrous , terminal and axillary buds covered by imbricate bracts, young twigs with clusters of scars from fallen bracts. Leaves alternate; petiole to 3 cm. Leaf blade ovate to elliptic or elliptic-lanceolate, with (1-) 3 primary veins, 7-12 × 3-5 cm, base rounded to cuneate, apex sharply acute; surfaces glabrous except for pubescent domatia in axils of main lateral veins. Flowers: tepals greenish white, 1-2 mm, glabrous abaxially, pubescent adaxially; stamens arranged in outer whorl of 6 (actually 2 whorls of 3) and inner whorl of 3. Drupe to 9 mm diam. 2 n = 24. Flowering spring (Apr-May). [source]

Habit: Forb/herb

Flowers: Bloom Period: January, February, September. • Flower Color: near white, white

Size/Age/Growth

Size: over 40' tall.

Habitat

Moist subtropical areas, including the Gulf Coast; 0-150 m (Ref. 51180).

LCD (2000) indicates that C. camphora prefers fertile , sandy soil. It will tolerate a pH anywhere in the range of 4.3 to 8, and will grow in full sun or partial shade. However, C. camphora does not do well in wet soils. Established trees are tolerant of drought . Occurs primarily in drier disturbed areas such as roadsides and fencerows, but has invaded natural areas such as mesic hammocks , upland pine woods , and scrubland.

Ecology: Murray and Ramey (2003) note that C. camphora grows like a weed , infesting forests and displacing native trees . According to LCD (2000), C. camphora fruits, leaves, and roots are toxic to humans in large doses . They contain chemicals that stimulate the central nervous system and may affect respiration or cause convulsions. In Chinese medicine, camphor is forbidden for pregnant women and those with a deficiency of vital energy or yin. . Australian research indicates that camphor poisoning may inflict damaging effects on wildlife. The fruits are high in chemicals known to cause sterility in birds. C. camphora trees have been associated with fish kills and the absence of frogs in nearby wetlands. Camphor is a prolific seed producer that apparently does not have serious predators or diseases outside its native range. Seedlings and root sprouts are abundant near mature trees, but individual trees pop up far from seed sources.

Biology

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Reproduction

WAC (UNDATED) indicates that C. camphora flowers are hermaphroditic . The fruit ripens in autumn and turns black when ripe . Seeds of C. camphora have poor germination due to a hard seed coat .

Duration: Perennial

Growth

Culture: Space 8-10' apart.

Soil: Minimum pH: 5.6 • Maximum pH: 7.8

Sunlight: Sun Exposure: Full Sun .

Temperature: Cold Hardiness: 8a, 8b, 9a. (map)

Taxonomy

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Synonyms

Camphora camphora (L.) Karst. • Laurus camphora L.

Notes

Basionym : Lauraceae Laurus camphora L.Basionym author : (L.)

Similar Species

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Members of the genus Cinnamomum

ZipcodeZoo has pages for 27 species, subspecies, varieties, forms, and cultivars in this genus:

C. aromaticum (Cassia Cinnamon) · C. bejolghota (and God´s Cinnamon) · C. burmanni (Padang Cassia) · C. burmannii (Malaysian Cinnamon) · C. burmannii f. heyneanum (Narrow-Leaved Batavia Cinnamon) · C. camphora (Camphor Laurel) · C. camphora var. procera (Japanese Camphor) · C. chekiangensis (Camphor Tree) · C. citriodorum (Malabar Cinnamon) · C. elongatum (Laurel Avispillo) · C. glanduliferum (False Camphor Tree) · C. iners (Wild Cinnamon) · C. japonicum (Japanese Cinnamon) · C. loureirii (Saigon Cassia) · C. loureiroi (Vietnamese Cinnamon) · C. macrocarpum (Medicinal Cinnamon) · C. malabathrum (Cinnamon (Western Ghats - India)) · C. mercadoi (Cinamomon) · C. mexicanum (Mexican Cinnamon) · C. montanum (Avispillo) · C. sessilifolium (Cinnamon) · C. sulphuratum (North-India Wild Cinnamon) · C. tamala (Indian Bark) · C. tamala var. albiflorum (Indian-Cassia) · C. tamala var. intermedium (Indian-Cassia) · C. verum (Ceylon Cinnamon Tree) · C. zeilanicum (Sri Lanka Cinnamon)

More Info

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Further Reading

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Notes

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Contributors

Data Sources

Accessed through GBIF Data Portal November 21, 2007:

Identifiers

Footnotes

  1. Henk van der Werff "Lauraceae". in Flora of North America Vol. 3. Oxford University Press. Online at EFloras.org. [back]
  2. Henk var der Werff "Cinnamomum". in Flora of North America Vol. 3. Oxford University Press. Online at EFloras.org. [back]
Last Revised: 7/14/2012