Alocasia macrorrhiza
| Alocasia macrorrhiza | |||||||||||||||||||||
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 Alocasia macrorrhiza | |||||||||||||||||||||
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| Alocasia odora (Lodd.) Spach (1846) |
Alocasia macrorrhiza (Alocasia odora) is the green-related perennial plant that it is the way the taro department Alocasia macrorrhiza genus goes. I have a leaf as the big thing makes an umbrella and lets the human being. It is familiar as a houseplant having a big leaf with the simple taste and, in the area, is said to be the alocasia (or an alocasia) by a scientific name kana reading.
Table of contents
Form
Such as the taro is not aggregated, and there is a rhizome lengthening into a stick form, and crawl on the surface of the earth a little while sometimes branching it, and the tip stands up slightly. I soak several pieces of leaves from a leader. There is considerable individual difference in size, and height of a rice plant is various from the thing like the knee of the person to a thing more than the height. As for the leaf, length becomes 60cm, and the whole includes saw teeth of the undulation with an oval. The base runs into the heart form deeply, but the leafstalk slightly arrives into a shield form. The leafstalk narrows with green more than 60cm - 1m to the tip.
The flower appears behind a leaf in summer from early summer. The base is a pipe form, and the spathe is green, and it is an oval, and the tip is slightly bigger than it and stands in form to hold with an oval slightly inward and is tinged with white from green. Kaho goes out of the magnum; and yellow-tinged white. When fruit becomes ripe, the spathe falls off, and fruit comes to be outstanding.
Distribution
I am distributed over Ryukyu Islands via South Kyushu from South Shikoku in Japan in the tropical zone, subtropical zones area such as Indochina, India from Chinese southern part, Taiwan. The Alocasia macrorrhiza of Yawata Shrine of Goto-shi, Nagasaki becomes the designated natural monument. On the other hand, it is seen in Okinawa to grow wild commonly in side of the road, garden of the house, many places including the hedge. I may fill the forest floor in the forest of the low land.
Close species
In Japan, Mt. Yae Alocasia macrorrhiza (A. atropurpurea Engler) that slightly small sima Alocasia macrorrhiza (A. cucullata (Lour.) G.Don) is larger in Ryukyu Islands and Ogasawara Islands produces it in Iriomotejima.
However, it will be a kind from a foreign territory that is rather cultivated as a houseplant that see well. They are often called an alocasia. The alocasia green velvet which India has alocasia アマゾニカ where the contrast of the Indian Alocasia macrorrhiza (A. macrorrhiza) of the place of origin, a green leaf and the white leaf vein is beautiful, the luster of the velvet toward is well known.
Toxic
The name of the Alocasia macrorrhiza is similar to taro in "Alocasia macrorrhiza" visually, but is called so because I cannot eat it. It should prevent you from touching juice appearing not to mention the calcium oxalate having stimulation for a mucous membrane of the skin, and eating from the cut end by hand. In Japan, the stem (dried stem of a taro plant) of taro and the lotus potato which appearance is similar to and an accident to eat a stem of the Alocasia macrorrhiza mistakenly by mistake, and to be poisoned by often occur. [1][2] [3]. By the classification of the Tokyo welfare health station, the Alocasia macrorrhiza is classified in a poisonous herb.
Even if Alocasia macrorrhiza grows thick in the ranches in Okinawa, a cow and a goat do not eat this. I am said to be a learning effect. [The source required]
But, in China, abdominal pain and dysentery, hernia are external and are used as a therapeutic drug of a cold as an abscess, snake poison and a therapeutic drug of the insect splinter symptom in [4], Vietnam [5].
Culture side
The legend about the potato which I cannot eat called the propagating Buddhism Great Teacher (sky Sea) and "a stone potato" is introduced into each place of the whole country. It is the story "that the legendary contents are about the same, and sees that a certain villager bakes taro when the propagating Buddhism Great Teacher visited the ground, and asked to feed it it, but was strange to the thing which I can never eat like a stone firmly when a villager is going to eat the potato after the villager declined it when this is a potato not to be able to eat, and the Great Teacher left" [6]. It is thought that the kind of the strong taro of the acrid taste that became a half wild animal and one seeing are proper as for most of "the stone potato" in this legend [7], but, as for "the stone potato in similar legend to reach Kochi and Ehime," there is the opinion to be Alocasia macrorrhiza [8].
The source and references
- An "Alocasia macrorrhiza" "false meal attention appeal Ministry of Health, Labour and Welfare Kochi, 40,010 cities food poisoning". The Nihon Keizai Shimbun. (October 6, 2012)/ February 11, 2013 reading.
- Katsusane Goto, Junko Tsukioka. "Alocasia macrorrhiza". A natural poisonous risk profile. Ministry of Health, Labour and Welfare. February 11, 2013 reading.
- Saitama-shi health science research center (April 9, 2015). "The potato "Alocasia macrorrhiza" which I cannot eat". Science なび. Saitama-shi. May 10, 2015 reading.
- Boyce, Peter C. (2008). "A review of Alocasia (Araceae: Colocasieae) for Thailand including a novel species and new species records from South-West Thailand". Thai Forest Bulletin (Botany) (Forest Herbarium, Royal Forest Department): It is reading 1-17 on f February 17, 2013. .
- Matsuda, M; Nawata, E (2002), "Taro in Northern Vietnam is tropical zone agriculture (Japanese Society for Tropical Agriculture) 46 (4): Its Uses, Cultivation, and Genetic Variation" 247-2587 February 17, 2013 reading.
- Green leaves, high (2000), "taro and a stone potato legend," it is natural history of vegetables, Yasaka bookshop, pp. 157-177, ISBN 4-89694-458-5
- Hino, 厳 (2006), "26 is plant apparition legend new idea second volume, Nakakou library, Chuokoron-Sha, pp. a stone potato" 98-101, ISBN 4-12-204702-1
- Yoshisuke Satake, Jisaburo Oi, Shiro Kitamura et al. "wild plant herb I monocotyledonous plant ,(1982), Heibonsha Publishers Ltd. of Japan"
Allied item
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