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True indigo is a shrub 1–2 metres (3 ft 3 in – 6 ft 7 in) high. It may be an annual, biennial, or perennial, depending on the climate in which it is grown. It has light green pinnate leaves and sheafs of pink or violet flowers. The rotenoids deguelin, dehydrodeguelin, rotenol, rotenone, tephrosin and sumatrol can be found in I. tinctoria. [3]
Indigo plantations also thrived in the Virgin Islands. However, France and Germany outlawed imported indigo in the 16th century to protect the local woad dye industry. In central Europe, indigo resist dyeing is a centuries-old skill that has received UNESCO Intangible Cultural Heritage of Humanity recognition. [13]
Indigofera suffruticosa, commonly known as Guatemalan indigo, small-leaved indigo (Sierra Leone), West Indian indigo, wild indigo, and anil, [2] is a flowering plant in the pea family, Fabaceae. Anil is native to the subtropical and tropical Americas , including the Southern United States , the Caribbean , Mexico , Central America , and South ...
Indigofera is a varied genus that has shown unique characteristics making it an interesting candidate as a potential perennial crop. [clarification needed] Specifically, there is diverse variation among species with a number of unique characteristics.
The Indigo revolt (or Nil bidroha; Bengali: নীল বিদ্রোহ) was a peasant movement and subsequent uprising of indigo farmers against the indigo planters, that arose in Bengal in 1859, and continued for over a year.
Indigo carmine, or 5,5′-indigodisulfonic acid sodium salt, is an organic salt derived from indigo by aromatic sulfonation, which renders the compound soluble in water. Like indigo, it produces a blue color , and is used in food and other consumables , cosmetics, and as a medical contrast agent and staining agent; it also acts as a pH indicator .
Baptisia, commonly referred to as wild indigo or false indigo, represents a diverse genus within the legume family, Fabaceae. These flowering herbaceous perennials exhibit an array of characteristics, including pea-like flowers, blooming in the spring that eventually mature into pods, occasionally displaying an inflated form.
Indigo Airlines was an American airline headquartered in Chicago, Illinois. It was the first business jet airline , founded in 1997 by Matt Andersson, John N. Fenton and Tom Svrcek. [ citation needed ] Its headquarters were first located in Chicago's Near North Side , [ 1 ] and later at Chicago Midway Airport .