1887 illustration from
Köhler's Medicinal Plants
Jacks. ex Andrews
Vanilla planifolia is a species of vanilla orchid. It is native to Mexico and Central America, and is one of the primary sources for vanilla flavouring, due to its high vanillin content. Common names are flat-leaved vanilla, Tahitian vanilla, and West Indian vanilla (also used for the Pompona vanilla, V. pompona). Often, it is simply referred to as "the vanilla". It was first scientifically named in 1808.
Like all members of the genus Vanilla, V. planifolia is a vine. It uses its fleshy roots to support itself as it grows.
Flowers are greenish-yellow, with a diameter of 5 cm (2 in). They last only a day, and must be pollinated manually, during the morning, if fruit is desired. The plants are self-fertile, and pollination simply requires a transfer of the pollen from the anther to the stigma. If pollination does not occur, the flower is dropped the next day. In the wild, there is less than 1% chance that the flowers will be pollinated, so in order to receive a steady flow of fruit, the flowers must be hand-pollinated when grown on farms.
Fruit is produced only on mature plants, which are generally over 3 m (10 ft) long. The fruits are 15–23 cm (6–9 in) long pods (often incorrectly called beans). Outwardly they resemble small bananas. They mature after about five months, at which point they are harvested and cured. Curing ferments and dries the pods while minimizing the loss of essential oils. Vanilla extract is obtained from this portion of the plant.
When propagating vanilla orchids from cuttings or harvesting ripe vanilla pods, care must be taken to avoid contact with the sap from the plant's stems. The sap of most species of Vanilla orchid which exudes from cut stems or where beans are harvested can cause moderate to severe dermatitis if it comes in contact with bare skin. Washing the affected area with warm soapy water will effectively remove the sap in cases of accidental contact with the skin. The sap of vanilla orchids contains calcium oxalate crystals, which appear to be the main causative agent of contact dermatitis in vanilla plantation workers.
- The Plant List: A Working List of All Plant Species, retrieved 26 January 2016
- GRIN-Global Web v 188.8.131.52: Taxonomy of Vanilla planifolia
- Reinvestigation of vanillin contents and component ratios of vanilla extracts using high-performance liquid chromatography and gas chromatography. Scharrer A and Mosandl A, Deutsche Lebensmittel-Rundschau, 2001, volume 97, number 12, pages 449-456, INIST:14118840
- "Vanilla Orchid Care - OrchidsMadeEasy.com".
- "Cultural Requirements of the Vanilla Orchid" (PDF).
- "Growing Vanilla Bean Plants (Vanilla planifolia orchid). Vanilla Plants and seeds for sale. - NurseriesOnline". 8 August 2015.
- "Vanilla planifolia Andrews - Plants of the World Online - Kew Science". powo.science.kew.org.
- "Vanilla planifolia Vanilla PFAF Plant Database". pfaf.org.
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