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Indigofera tinctoria, also called true indigo, is a species of plant from the bean family that was one of the original sources of indigo dye. Description [ edit ] True indigo is a shrub 1–2 metres (3 ft 3 in – 6 ft 7 in) high.
W. tinctoria. Binomial name. Wrightia tinctoria. ( Roxb.) R.Br., Mem. Wern. Soc. 173. 1809. Wrightia tinctoria, Pala indigo plant or dyer's oleander, [1] is a flowering plant species in the genus Wrightia found in India, southeast Asia and Australia. It is found in dry and moist regions in its distribution.
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. Some examples of this diversity include differences in pericarp thickness, fruit type, and ...
Isatis japonica Miq. Isatis tinctoria, also called woad ( / ˈwoʊd / ), dyer's woad, dyer's-weed, or glastum, is a flowering plant in the family Brassicaceae (the mustard family) with a documented history of use as a blue dye and medicinal plant. Its genus name, Isatis, derives from the ancient Greek word for the plant, ἰσάτις.
Indigo, space-filling. Indigo dye is a dark blue crystalline powder that sublimes at 390–392 °C (734–738 °F). It is insoluble in water, alcohol, or ether, but soluble in DMSO, chloroform, nitrobenzene, and concentrated sulfuric acid. The chemical formula of indigo is C 16 H 10 N 2 O 2 .
Indole is a solid at room temperature. It occurs naturally in human feces and has an intense fecal odor. At very low concentrations, however, it has a flowery smell, [3] and is a constituent of many perfumes. It also occurs in coal tar. It has been identified in cannabis. [4]
Binomial name. Tephrosia purpurea. ( L.) Pers. Tephrosia purpurea is a species of flowering plant in the family Fabaceae, that has a pantropical distribution. It is a common wasteland weed. In many parts it is under cultivation as green manure crop. It is found throughout India and Sri Lanka [1] in poor soils.
Vitex negundo, commonly known as the Chinese chaste tree, [2] five-leaved chaste tree, or horseshoe vitex, or nisinda is a large aromatic shrub with quadrangular, densely whitish, tomentose branchlets. It is widely used in folk medicine, particularly in South and Southeast Asia . Vitex negundo is an erect shrub or small tree growing from 2 to 8 ...