Vanilla planifolia dermatitis in vanilla plantation workers. Vanilla planifolia 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. "Vanilla planifolia" is found in Mexico, Central America, the Caribbean, and northeastern South America. It prefers hot, wet, tropical climates. It is cultivated and harvested primarily
Orchid mycorrhiza where in bidirectional nutrient transport takes place such as in green leaved "Goodyera repens". For the documented interactions in orchid mycorrhiza it has been observed that even in photosynthetically capable species carbon will readily flow from fungi to the plant. This may or may not occur simultaneously with the transfer of carbon from plant to fungi. The evolutionary reasoning for this phenomenon is yet to be deduced. Due to this orchid mycorrhiza in general are considered at least partially mycoheterotrophic interactions. In the mycoheterotrophic orchid mycorrhiza carbon is taken up, by the fungi, as an array of peptide and carbohydrate