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Dendrobium nobile | |
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Scientific classification | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Angiosperms |
Clade: | Monocots |
Order: | Asparagales |
Family: | Orchidaceae |
Subfamily: | Epidendroideae |
Tribe: | Dendrobieae |
Genus: | Dendrobium |
Species: | D. nobile |
Binomial name | |
Dendrobium nobile | |
Synonyms [3] | |
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Dendrobium nobile, commonly known as the noble dendrobium, is a member of the family Orchidaceae. It has become a popular cultivated decorative house plant, because it produces colourful blooms in winter and spring, at a time when little else is in flower. It is also one of the 50 fundamental herbs used in traditional Chinese medicine, known as shí hú (Chinese : 石 斛 ) or shí hú lán (Chinese : 石 斛 兰 ). [4] Dendrobium nobile is one of the most widespread ornamental members of the orchid family. Its blooms are variegated in colour, shading from white through pink and purple, and the many different cultivated varieties produce different sized and coloured blooms.
Dendrobium nobile is an epiphytic or lithophytic plant native to southern China (including Tibet), the Himalayas (India, Bangladesh, Assam, Nepal, Bhutan), and Indochina (Myanmar, Thailand, Laos, Vietnam). [5] [6] [7] [8] [9] [10] [11] The species is also reportedly naturalized in Hawaii. [12] It is the state flower of Sikkim.
Dendrobium nobile occurs in lowland and mountain forests, often on mossy limestone rocks. It is a tender plant that only survives winters in USDA hardiness zones 11 and above. [13] It has strap-shaped, persistent leaves, and blooms mostly in winter and spring. It produces short, 2 to 4 flowered racemes, fragrant, waxy, and highly variable in color, arising from the upper nodes of leafed and leafless canes.
Examples of the species are grown in Kew Gardens Tropical Nursery in London and seeds are stored in the Millennium Seed Bank there.[ citation needed ]
Dendrobium nobile is a sympodial orchid which forms pseudobulbs. When the life cycle of the mother plant ends it produces offsets, continuing the life of the plant. The new plant then goes through the same cycle. The inflorescence is erect; during the flowering period blooms form along the length of the flowering stem. This seedling is monocot that is it forms only a single initial leaf, and the plant has thin white roots which attach themselves to another plant or object, making it an epiphytic plant.[ citation needed ]
Extract of the stems of Dendrobium nobile yielded 17 phenanthrenes (including 3,4,8-trimethoxyphenanthrene-2,5-diol, 2,8-dihydroxy-3,4,7-trimethoxyphenanthrene, 3-hydroxy-2,4,7-trimethoxy-9,10-dihydrophenanthrene, 2,8-dihydroxy-3,4,7-trimethoxy-9,10-dihydrophenanthrene, 2-hydroxy-4,7-dimethoxy-9,10-dihydrophenanthrene, 2,2'-dihydroxy-3,3',4,4',7,7'-hexamethoxy-9,9',10,10'-tetrahydro-1,1'-biphenanthrene and 2,3,5-trihydroxy-4,9-dimethoxyphenanthrene). [14] [15] There have been many studies on the complex chemistry of the plant.[ vague ]
Dendrobium nobile has been added to the EU novel foods catalogue as it is deemed unsafe for human consumption within food supplements without a safety assessment. [16]
Dendrobium is a genus of mostly epiphytic and lithophytic orchids in the family Orchidaceae. It is a very large genus, containing more than 1,800 species that are found in diverse habitats throughout much of south, east and southeast Asia, including China, Japan, India, the Philippines, Indonesia, Australia, New Guinea, Vietnam and many of the islands of the Pacific. Orchids in this genus have roots that creep over the surface of trees or rocks, rarely having their roots in soil. Up to six leaves develop in a tuft at the tip of a shoot and from one to a large number of flowers are arranged along an unbranched flowering stem. Several attempts have been made to separate Dendrobium into smaller genera, but most have not been accepted by the World Checklist of Selected Plant Families.
Dendrobium crumenatum, commonly called pigeon orchid, or 木石斛 is an epiphytic orchid in the family Orchidaceae and is native to Asia, Southeast Asia, New Guinea and Christmas Island. It has two rows on leaves along its pseudobulb and relatively large but short-lived, strongly scented white flowers. It usually grows in exposed positions in lowland rainforest and coastal scrub.
Dendrobium gibsonii is a species of orchid native to China, the Himalayas, and northern Indochina.
Phenanthrenoids are chemical compounds formed with a phenanthrene backbone. These compounds occur naturally in plants, although they can also be synthesized.
Dendrobium lindleyi, also known as Dendrobium aggregatum, is a plant of the genus Dendrobium. They are found in the mountains of southern China and Southeast Asia.
Dendrobium loddigesii is a miniature to small sized, warm to cold growing epiphyte, lithophyte or terrestrial orchid that comes from Laos, Vietnam, and China. It is found in humid, mossy, mixed and coniferous forests at elevations of 1000 to 1500 meters, in areas with dry winter and a wet spring and summer. The plant has tufted, pendant, subterete, striated, several-noded, white-sheathed stems carrying alternate, fleshy, oblong, acute leaves.
Dendrobium parishii is a species of orchid native to Asia.
Dendrobium aphyllum, commonly known as the hooded orchid or 兜唇石斛 is a species of orchid native to Bangladesh, southern China, the eastern Himalayas, and Indochina.
Dendrobium chrysotoxum is a widely cultivated species of orchid. It is native to Southeast Asia, growing naturally in Myanmar, Bhutan, Yunnan, China, Manipur, Assam, India, Bangladesh, Andaman Islands, Laos, Nepal, Thailand, and Vietnam.
Dendrobium crepidatum is a species of orchid. It is native to southern China, the eastern Himalayas, and northern Indochina.
Dendrobium crystallinum is a species of orchid. It is native to Southeast Asia, Hainan and Yunnan in China, and Manipur in India.
Dendrobium falconeri, commonly known as 串珠石斛 , is a species of orchid native to Asia.
Dendrobium farmeri, commonly known as Farmer's dendrobium, and in Chinese as 石斛属 , is a species of orchid native to Asia.
Dendrobium fimbriatum, commonly known as 流苏石斛 , is a species of orchid. It is native to China, the Himalayas and Indochina.
Dendrobium hookerianum is a species of orchid, native to Asia, in the genus Dendrobium.
Dendrobium jenkinsii, the Jenkins's dendrobium, is a species of orchid. It is native to southern China (Yunnan), the eastern Himalayas and northern Indochina.
Dendrobium longicornu, the long-horned dendrobium, is a species of orchid native to Asia.
Dendrobium moschatum, the musky-smelling dendrobium, is a species of orchid. It is native to the Himalayas, and Indochina.
Dendrobium thyrsiflorum is a species of orchid, commonly called the pinecone-like raceme dendrobium. It is native to the Himalayas as well as to the mountains of northern Indochina.
Dendrobium densiflorum is a species of epiphytic or lithophytic orchid, native to Asia. It has club-shaped stems, three or four leathery leaves and densely flowered, hanging bunches of relatively large pale yellow and golden yellow flowers.