''Gastrodia elata'' is a saprophytic perennial herb in the family

Orchidaceae Orchids are plants that belong to the family Orchidaceae (), a diverse and widespread group of flowering plants with blooms that are often colourful and fragrant. Along with the Asteraceae, they are one of the two largest families of flowerin ...

. It is found in

Nepal Nepal (; ne, नेपाल ), formerly the Federal Democratic Republic of Nepal ( ne, सङ्घीय लोकतान्त्रिक गणतन्त्र नेपाल ), is a landlocked country in South Asia. It is ma ...

Bhutan Bhutan (; dz, འབྲུག་ཡུལ་, Druk Yul ), officially the Kingdom of Bhutan,), is a landlocked country in South Asia. It is situated in the Eastern Himalayas, between China in the north and India in the south. A mountainou ...

India India, officially the Republic of India (Hindi: ), is a country in South Asia. It is the List of countries and dependencies by area, seventh-largest country by area, the List of countries and dependencies by population, second-most populous ...

Japan Japan ( ja, 日本, or , and formally , ''Nihonkoku'') is an island country in East Asia. It is situated in the northwest Pacific Ocean, and is bordered on the west by the Sea of Japan, while extending from the Sea of Okhotsk in the n ...

North Korea North Korea, officially the Democratic People's Republic of Korea (DPRK), is a country in East Asia. It constitutes the northern half of the Korean Peninsula and shares borders with China and Russia to the north, at the Yalu (Amnok) and T ...

Siberia Siberia ( ; rus, Сибирь, r=Sibir', p=sʲɪˈbʲirʲ, a=Ru-Сибирь.ogg) is an extensive geographical region, constituting all of North Asia, from the Ural Mountains in the west to the Pacific Ocean in the east. It has been a part ...

Taiwan Taiwan, officially the Republic of China (ROC), is a country in East Asia, at the junction of the East and South China Seas in the northwestern Pacific Ocean, with the People's Republic of China (PRC) to the northwest, Japan to the no ...

, and

China China, officially the People's Republic of China (PRC), is a country in East Asia. It is the world's List of countries and dependencies by population, most populous country, with a Population of China, population exceeding 1.4 billion, slig ...

Description

The orchid has an 8–12 centimeters long elliptical underground rhizome with a diameter of 3–5 centimeters but may grow up to 7 centimeters. The stem is erect with a height of 0.3–1 meter up to 2 meters, the orange yellow, tan, cylinder, and leafless. The flowered pale olivine or the orange red, the scape is length 5–30 centimeters, longest may be 50 centimeters. Floral Bractsare long lanceolate, length 1-1.5 centimeters; Pedicel and ovary of branch 0.7–1.2 centimeter, slightly short in colored bract; The sepal and the petal produce a slanting pot shape perianth tube, the perianth tube long the approximately 1 centimeter, the diameter 5–7 millimeters. The labellum is white, circular, with a length of 6–7 millimeters and width of 3–4 millimeters, the tip 3 cracks, the base pastes the tight pistil column full terminal, has a pair of pulp callus, in the callus connection perianth tube. The pistil column length 5–7 millimeters, have the short pistil column foot. Capsule each approximately 30, oval or but actually oval, length 1.2–1.8 centimeters, width 8–9 millimeters. The seed are most, 2 – 40,000 grains of each fruit, minimum, powdery. Flowering season June to July, fruit time July to August.

Growth

''Gastrodia elata'' grows in symbiosis with the fungus ''

Armillaria mellea ''Armillaria mellea'', commonly known as honey fungus, is a basidiomycete fungus in the genus ''Armillaria''. It is a plant pathogen and part of a cryptic species complex of closely related and morphologically similar species. It causes Armill ...

'' on rotting wood, depending on the hypha of the fungus to invade the root system so that the plant can absorb nutrients from ''A. mellea''.

Distribution and habitat

It is found in Nepal, Bhutan, India, Japan (Hokkaido, Honshu, Shikoku, Kyuushu), North Korea, Siberia, Taiwan, and China (in the provinces of Jilin, Liaoning, Inner Mongolia, Hebei, Shanxi, Shanxi, Gansu, Jiangsu, Anhui, Zhejiang, Jiangxi, Henan, Hunan, Hubei, Sichuan, Guizhou, Yunnan, and Tibet). It grows at elevations of , at the edge of forests.

Chemical properties

4-Hydroxybenzaldehyde and gastrodin can be found in the orchid ''G. elata''. It also produces 2,4-Bis(4-hydroxybenzyl) phenol, gastrol, gastrodigenin and other related compounds.

Traditional use

The herb is used in

traditional Chinese medicine Traditional Chinese medicine (TCM) is an alternative medical practice drawn from traditional medicine in China. It has been described as "fraught with pseudoscience", with the majority of its treatments having no logical mechanism of acti ...

and

Sichuan cuisine Sichuan cuisine, alternatively romanized as Szechwan cuisine or Szechuan cuisine (, Standard Mandarin pronunciation: ), is a style of Chinese cuisine originating from Sichuan Province. It has bold flavours, particularly the pungency and spici ...

. It is one of the three orchids listed in the earliest known Chinese Materia Medica ( Shennon bencaojing) (c. 100 AD). Medicinally, it is used for 'calming the liver' and for treating headaches, dizziness, tetanus, and epilepsy. According to "Nutrition Review," "Gastrodia root has been shown to exert novel pain relief and inflammatory-mediating activities, as well as in vivo and in vitro inhibitory activity on nitric oxide (NO) production."

References

{{Taxonbar, from=Q650760

elata Elata is a Greek village on the island of Chios. The village is situated on hilly terrain and has a population of several hundred. Elata Elata became a village hundreds of years ago when seven tribes came together to protect themselves from Tur ...

Orchids of China Orchids of India Orchids of Japan Orchids of Russia Orchids of Taiwan Orchids of Nepal Flora of Bhutan Flora of South Korea Flora of North Korea Flora of Siberia Vulnerable plants Orchids of Guizhou Orchids of Sichuan Orchids of Yunnan Flora of Anhui Flora of Gansu Flora of Hebei Flora of Henan Flora of Hubei Flora of Hunan Flora of Inner Mongolia Flora of Jiangsu Flora of Jiangxi Flora of Shanxi Flora of Tibet Flora of Zhejiang Taxonomy articles created by Polbot Taxa named by Carl Ludwig Blume